SB4100 Upgraded and now router don't work in Comcast HSI http://www.dslreports.com/forum/r14152519 en Fri, 04 Dec 2009 12:31:16 EDT Fri, 04 Dec 2009 12:31:16 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14469448 sortofageek : slimbone See Profile, it is my understanding you need the version 1.4.9.0 firmware for your modem. It is the 1.4.9.4 firmware version which has caused problems lately.

See this thread subsection:
»Re: The "I don't have the speed upgrade" thread

And you also may need the modem account rebuilt. See this post: »Re: The "I don't have the speed upgrade" thread

Yes, Comcast does push firmware. The problem is not every CSR with whom you speak can do that and not all are familiar with this particular issue. Polite persistence may lead you to someone who actually can help you.
--
Team Helix September 2005 Roll Call - Team Helix Forum - Join Us?]]> http://www.dslreports.com/forum/remark,14469448 Thu, 29 Sep 2005 15:56:05 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14468412 slimbone : So does comcast push the 1.4.9.4 firmware, or is it something Motorola does? Because, yesterday when I called comcast 4 different times/different people each time, they all told me that they don't do anything with modems, and that it's something motorola is responsible for.

But after reading posts here, I was under the impression it was a comcast issue.

So were the customer service ppl feeding me poop, or is it a joint venture, and fault lies with both companies?]]> http://www.dslreports.com/forum/remark,14468412 Thu, 29 Sep 2005 13:24:29 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14460160 slimbone : So, I've noticed that my modem is still using DOCSIS 1.0, and I think this is the reason I keep disconnecting every 30 minutes or so.

How do I update to DOCSIS1.1 ?]]> http://www.dslreports.com/forum/remark,14460160 Wed, 28 Sep 2005 11:47:20 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14457030 slimbone :
said by eatnaders See Profile :

All,

The SB3100, SB4100, and SB4101 needed to have their Digital Certificates updates. This was required to run with BPI+. This feature is part of DOCSIS 1.1. In order to get your modem upgraded to DOCSIS 1.1 the Digitial Certificates had to be updated on the modem. This is what you are seeing in the modem logs. No concerns needed.
so how do i go about updating my digital certificates?]]> http://www.dslreports.com/forum/remark,14457030 Tue, 27 Sep 2005 22:01:29 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14454179 Done_Posting : Ahh, so I was right; the same thing that happened when we tried to enable BPI+ happened to you guys. Kudos to our engineers for field testing the firmware updates before pushing it to every CMTS... :uhh:

- Tate
--
"I may work for a cable ISP, but I'm still an okay guy." ]]> http://www.dslreports.com/forum/remark,14454179 Tue, 27 Sep 2005 14:50:33 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14440764 eatnaders : All,

The SB3100, SB4100, and SB4101 needed to have their Digital Certificates updates. This was required to run with BPI+. This feature is part of DOCSIS 1.1. In order to get your modem upgraded to DOCSIS 1.1 the Digitial Certificates had to be updated on the modem. This is what you are seeing in the modem logs. No concerns needed.]]> http://www.dslreports.com/forum/remark,14440764 Sun, 25 Sep 2005 17:24:37 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14440742 eatnaders : Your SB4100 should be running 1.4.9.0. 1.4.9.4 will cause connectivity issues. If you PM me I will get this resolved for you ASAP.]]> http://www.dslreports.com/forum/remark,14440742 Sun, 25 Sep 2005 17:21:38 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14438269 nik3t : I don't think this is just a problem with the Motorola, I'm having the same problems with my RCA DCM425C rental from Comcast. I had exchanged it for a new one and now so far since yesterday, I've had 4 resets. Atleast I'm not having resets every 5 mins.

Can anyone still help me out? =\

I'm in Philadelphia.]]> http://www.dslreports.com/forum/remark,14438269 Sun, 25 Sep 2005 09:05:53 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14222603 sortofageek : I am wondering if you can explain this one?

»SB4100 configurations vs. caps

--
Team Helix August 2005 Roll Call - Team Helix Forum - Join Us?]]> http://www.dslreports.com/forum/remark,14222603 Thu, 25 Aug 2005 23:35:52 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14222007 eatnaders : PM your modem MAC, you should be running 1.4.9.0. 1.4.9.4 is bad code.]]> http://www.dslreports.com/forum/remark,14222007 Thu, 25 Aug 2005 22:14:40 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14216818 mace24 : I went and replaced my modem with a new much smaller modem, a thomson rca cable modem. It's half the size of my linksys router.

I had a little trouble setting it up, because for some reason in order to get it working I had to download some software off the router to verify that i'm a subscriber. I guess linux users would be sol there.

Well I'm happy for now. I do like the small size of the new modem. I just hope there aren't any negative things about this modem.]]> http://www.dslreports.com/forum/remark,14216818 Thu, 25 Aug 2005 10:51:56 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14200760 anon : It looks like Comcast is trying to fix the problem here in Wheeling, IL although is also seems like they don't know what they are doing...big suprise:

050823111545 4-Error X501.35 Unit Update Failed.
050823111545 8-Debug F502.1 Bridge Forwarding Enabled.
050823111544 4-Error E107.0 SW Upgrade Failed after download - Incompatible SW file
050823111544 4-Error X518.8 Unit Update - Invalid PKCS#7 file format
050823111544 8-Debug F502.2 Bridge Forwarding Disabled.
050823111543 7-Information X500.0 Attempting Unit Update
050823111543 6-Notice E101.0 SW Download INIT - via NMS

Regards]]> http://www.dslreports.com/forum/remark,14200760 Tue, 23 Aug 2005 12:58:02 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14197997 mikeakers : Glad I found this. I thought my router had died. I have a Dlink 704p router that was also seeing the periodic modem reboots. I changed to a Dlink 604, which must have a 10/100 WAN port, and problem is gone. Since I rent, I might just have Comcast give me a new modem.]]> http://www.dslreports.com/forum/remark,14197997 Tue, 23 Aug 2005 01:24:06 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14195641 anon : Thanks for chasing down an actual tech!

Keep us informed on what he says...]]> http://www.dslreports.com/forum/remark,14195641 Mon, 22 Aug 2005 19:50:20 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14195260 anon : [slightly edited message crossposted from the aforementioned Comcast forum]

Same problem here in Littleton CO with several hundred SB4100 reboots since last week caused by "T4 Timer Expired."

Comcast has been amazingly unresponsive via chat and email; the chat support people are not even allowed to see either the dslreports or Comcast forum postings to verify that this is a real and widespread problem. In fact, their only response, since I own my modem, is that I have to pay for a service tech call, since the problem is obviously in MY modem (totally ignoring, of course, the fact that THEY are the only ones who have control over what version of firmware is in MY box!).

Anyway, the service tech just left with information printed from dslreports and Comcast fora regarding the firmware 'downgrade' fix that seems to have worked in TX.

He was very appreciative to have the info (thanks to everyone here who posted same!) and said that he will take responsibility to get it passed up the chain of command to get this fixed.

Now, fingers crossed, may we finally have some relief...

Any bets on how long this will take? I'll post the answer to that when I see it happen...]]> http://www.dslreports.com/forum/remark,14195260 Mon, 22 Aug 2005 19:01:06 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14186107 anon : FYI. Here is a link to the Comcast help forum where there are a lot of people in the same boat.

»forums.comcast.net/thread.jspa?t···tstart=0

Regards]]> http://www.dslreports.com/forum/remark,14186107 Sun, 21 Aug 2005 15:01:13 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14185883 anon : Check your logs at 192.168.100.1 and look for the reboots.

If there aren't any then you don't have this bug.

Let us know 'case I just might get a newer modem like yours if that config with the RP114 router works...

-Fear]]> http://www.dslreports.com/forum/remark,14185883 Sun, 21 Aug 2005 14:22:47 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14185523 darcilicious :
said by plencnerb See Profile:

So, with that, it appears that I have 4 10/100 Mbps LAN ports, and one 10 Mbps WAN Port. With that being said, could I run into the same kinds of problems with my SB5100, and would this setup keep me from getting the faster download speeds? Bottom line, should I look into getting a new router?
It depends ;-)

In the case of the SB4100 / 10Mb WAN port combo -- Comcast pushed bad firmware; no one with an SB5100 has reported anything similar.

However, if you're looking to get the 8Mb/768 package (regardless of the modem), you will most likely NOT see the full 8Mb because the router will not be able to keep up with the overall overhead (most likely).

You should be fine with the 6Mb/384 packages however.]]> http://www.dslreports.com/forum/remark,14185523 Sun, 21 Aug 2005 13:17:39 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14184909 plencnerb : Ok, with all this talk with the SB4100 modems and older routers, I am wondering if this problem could happen with the SB5100's and older routers.

My current setup is a SB5100 Modem, and then a Netgear RP114 Router. I've had that router for a long time. In fact, I got it when I first got connected via cable internet using @home back in 2000 or 2001.

Looking in my documentation for the router, it says the following about the LAN and WAN ports.

said by My Router Documentation:


• Built in 4-port 10/100 Mbps Switch
– Allows LAN connections at 10 megabits per second (Mbps) or 100 Mbps
– Autosensing for Ethernet (10BASE-T) or Fast Ethernet (100BASE-Tx) transmissions
– Autosensing MDI/MDIX configures each port for normal or uplink connection
– Half-duplex or full-duplex operation

• Ethernet connection to a wide area network (WAN) device, such as a cable modem or DSL
modem
– RJ-45 interface allowing connection to a 10BASE-T device

So, with that, it appears that I have 4 10/100 Mbps LAN ports, and one 10 Mbps WAN Port. With that being said, could I run into the same kinds of problems with my SB5100, and would this setup keep me from getting the faster download speeds? Bottom line, should I look into getting a new router?

Thanks in advance,

--Brian
--
============================
--Brian Plencner
E-Mail: saursesCancer@comcast.net
Note: Kill Cancer to Reply via e-mail]]> http://www.dslreports.com/forum/remark,14184909 Sun, 21 Aug 2005 11:24:40 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14183405 StillLearn :
said by fearme7:

Thanks to those who figured it out! I'd never have guessed the router...
-Fear
The problem is not the router; it is the modem. The workaround is the router.]]> http://www.dslreports.com/forum/remark,14183405 Sun, 21 Aug 2005 02:03:18 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14183147 anon : Same here from Central CT with Comcast. The death firmware push happened three days ago.

Driving me nuts. Every 15-20 minutes the f!cking Motorola reboots but sometimes longer.

I'm using an old NetGear RP114 10mbs 4-port little router. I'm going to play with the router a bit and see if I can figure something out besides buying a 10/100 new one...

Thanks to those who figured it out! I'd never have guessed the router...
-Fear]]> http://www.dslreports.com/forum/remark,14183147 Sun, 21 Aug 2005 00:59:10 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14182368 jlehew : Sounds like a real pisser. Guess I just got lucky. When I explained the problem to tech support the guy knew all about it and said he'd send a tech out with a new modem on Sunday. ]]> http://www.dslreports.com/forum/remark,14182368 Sat, 20 Aug 2005 22:45:02 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14181012 GotNoRice : If it's really an issue of it not working with 10Mbit ports, but you would like to keep using your old router anyway, just get a cheap 5 port 10/100 switch and place it between your modem and your router.]]> http://www.dslreports.com/forum/remark,14181012 Sat, 20 Aug 2005 19:01:24 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14180133 anon : Same trouble here in NW Indiana. Have an SB4100 attached to an old Linksys BEFW1154 router. 10-T only on the WAN port and it was showing the same on again-off again trouble. Attached it directly to the 10/100 port on the PC and no problem. Looked at the modem config page and sure enough, they upgraded the firmware the modem to the SB4100-1.4.9.4-SCM02-NOSH. Guess it's time to start looking for a new modem (had this one for 5 years) I've got my money's worth out of it........]]> http://www.dslreports.com/forum/remark,14180133 Sat, 20 Aug 2005 16:26:31 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14178586 anon : Same issue here. Called comcast to tell them the issue. They deny doing anything to the modem. Told me to call linksys to troubleshoot. linksys knows of the issue and said the modem firmware needs to be downgraded. Called comcast back (different person), they told me they didnt do anything to the modem. told me to call motorola because they had to do the upgrade (i knew this wasnt possible and motorola confirmed this). Called comcast back - got a REAL cocky bastard. told me it must be my issue and they will do nothing to fix it. Fed up at this point, i ripped the guy a new one and told him to just close the ticket. went out and purchased a new router. fixed the issue. I wish i could cancel comcast, but i have no other broadband providers in my area. It is just amazing that you can prove the issue is theirs and they still deny it. oh well, i guess i needed to upgrade but it really burns me that they MADE me do it by denying the issue. ]]> http://www.dslreports.com/forum/remark,14178586 Sat, 20 Aug 2005 11:44:49 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14176765 anon : Changed my router to a 10/100Mbs on the WAN side and I haven't had any reboots in hours. Problem solved!

Config is now:
SB4100
SMC 7004VWBR v1

Thanks to all for ]]> http://www.dslreports.com/forum/remark,14176765 Sat, 20 Aug 2005 01:10:33 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14171677 anon : Glad I stumbled upon this forum....

Located in Hartford, CT area and been having the reboot problems for the past few nights. Thought it might be spyware or virus gunking things up but all PC's are clean (having spent HOURS scanning and checking).

Yes, I have the SB4100 and a Linksys BFSR41 router (10Mbs WAN side). I'll check the modem logs tonight when I get home to see the firmware rev on the modem.

I have another router I can try too. Will report back success or failure.]]> http://www.dslreports.com/forum/remark,14171677 Fri, 19 Aug 2005 13:27:18 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14168669 djdanska :
said by resmopar See Profile:

My brother said his SB4100 was rebooting every couple of minutes around 6am this morning. He also lives here in Morton Grove. It disrupted him enough that he couldn't check email or pull up any websites so he gave up. For the heck of it, I logged into my SB4100 and it's logfile had some events in there I had never seen before. The only thing that jumped out at me was that the firmware was indeed updated, from 0.4.4.2 to 1.4.9.4-SCM02-NOSH. I do have it hooked up to a Linksys WRT54G router, and have not had any problems online. Everything is working as it did before the firmware update. My brother is running a Linksys BEFSR41 v2 router at his house. Below is a snip of the logfile:

050817044449 8-Debug M570.2 Motorola CM certificate present
050817044449 8-Debug M571.7 CM Cert Upgrade Enabled. AutoRun after Reg or via SNMP
050817044449 8-Debug I503.0 Cable Modem is OPERATIONAL
050817044448 7-Information B401.0 Authorized
050817044446 8-Debug F502.1 Bridge Forwarding Enabled.
050817044446 8-Debug F502.3 Bridge Learning Enabled.
050817044446 7-Information B0.0 Baseline Privacy
050817044446 7-Information X518.9 Configuration - MMFMMD - Unit Update Enabled by CVC
050817044446 8-Debug I500.1 DOCSIS 1.0 Registration Completed
050817044446 7-Information I500.4 Attempting DOCSIS 1.0 Registration
050817044446 7-Information D509.0 Retrieved TFTP Config File SUCCESS
050817044446 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D3.0 DHCP WARNING - Non-critical field invalid in response
************ 4-Error D530.8 DHCP - Invalid Log Server IP Address.
************ 5-Warning D520.2 DHCP Attempt# 2 BkOff: 5s Tot DSC:2 OFF:1 REQ:1 ACK:1
************ 3-Critical D1.0 DHCP FAILED - Discover sent, no offer received
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 42, tempSid 133
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 3-Critical R2.0 No Ranging Response received - T3 timeout
************ 7-Information T501.0 Acquired Downstream (717000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 717000000, US Id 4
************ 7-Information I510.0 *** BOOTING *** SB4100-1.4.9.4-SCM02-NOSH
************ 8-Debug M575.3 Embedded DOCSIS Root Key installed
************ 7-Information M567.0 Log cleared because it contained entries in an old format

Speedtests come back fine as well:
Preparing Speedtest . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (upload) . . . . . 739.44Kb/s
running 10s inbound test (download) . . . . . . 6.30Mb/s
Funny you mention that.. Im out in westmont and early this morning my modem was acting up too. It was weird.. It wouldn't give out an ip address. I only had 5 minutes to see what happened. I rebooted the modem and no ip again.

when i got home everything was fine. Roommate rebooted everything around 9:30am and things where back to normal.

i have a 5120 though.

SB5120-2.9.2.10-SCM03-NOSH

I don't remember what it was earlier. Been ages since i checked. Might be new, maybe not..
--
"I'm not bright, big words confuse me, I have the attention span of a rodent and Wanda loves me anyway! And that should be enough for you!"]]> http://www.dslreports.com/forum/remark,14168669 Fri, 19 Aug 2005 01:18:06 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14168641 anon : I have a SB4100 as well in the Wheeling area and have been experiencing the reboot problems for the past few days. My firmware is SB4100-1.4.9.4-SCM02-NOSH like the others and I have a Netopia 9100 router so this seems to fit the profile of 10 Mbps LAN connections causing the trouble.

Has anyone called Comcast and actually gotten them to downgrade the firmware and if so what were the magic words.]]> http://www.dslreports.com/forum/remark,14168641 Fri, 19 Aug 2005 01:12:22 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14168457 anon : I am seeing this here (N. Ill.) too. I have a SB4100
hooked to a PC running OpenBSD as a firewall/router
with a 10mb connection to the SB4100.

Some time yesterday, the modem started rebooting. After
reading your suggestions I stuck a 10/100 switch
in between the cable modem and PC. Too soon yet to
tell if anything is better, but I have my finger crossed!]]> http://www.dslreports.com/forum/remark,14168457 Fri, 19 Aug 2005 00:31:19 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14165228 Phil75070 : Apparently, Comcast has done another software "upgrade" that seems to have rolled the firmware back to an earlier state (?) and seems to have solved my issues as I have been "up" for3 hrs 40 minutes!

************ 7-Information I510.0 *** BOOTING *** SB4100-1.4.9.0-SCM00-NOSH
050818124751 8-Debug F502.1 Bridge Forwarding Enabled.
050818124747 6-Notice E111.0 SW Download Successful - Via NMS
050818124632 8-Debug F502.2 Bridge Forwarding Disabled.
050818124632 4-Error X501.57 Unit Update - Can't perform Unit Update, Unit Update already in progre
050818124631 7-Information X500.0 Attempting Unit Update
050818124631 6-Notice E101.0 SW Download INIT - via NMS ]]> http://www.dslreports.com/forum/remark,14165228 Thu, 18 Aug 2005 17:32:00 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14162473 darcilicious :
said by Done_Posting See Profile:

As stated above, I saw that after posting.

Thanks for the guidance though. :)

- Tate
Our posts passed each other in the ether :)]]> http://www.dslreports.com/forum/remark,14162473 Thu, 18 Aug 2005 11:46:20 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14162457 Done_Posting : As stated above, I saw that after posting.

Thanks for the guidance though. :)

- Tate
--
"I may work for a cable ISP, but I'm still an okay guy." ]]> http://www.dslreports.com/forum/remark,14162457 Thu, 18 Aug 2005 11:44:26 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14162403 darcilicious :
said by Done_Posting See Profile:

So, I guess my question is this: Has anyone here experienced the reboot problem that is NOT running a router? I'd be interested to see if a PC connecting at 10mbps half or full duplex would run into the same problems at the 10mbps router folks...

Either way, best of luck guys!

- Tate
Please read through this thread carefully/thoroughly, in particular posted above was:

said by danweber See Profile:

Stupid me. I can't change the WAN port speed on the router but I can use my PC and try the different variations. That's what I just did and it substantiates what we had seen before:

10Mbps Half Duplex   =>  Works for a few minutes then modem reboots
10Mbps Full Duplex   =>  Works for a few seconds then modem reboots
100Mbps Half Duplex  =>  No problem
100Mbps Full Duplex  =>  No problem

So it's clear. The SB4100 Firmware upgrade is no longer compatible with a 10Mbps connection. I guess these days most routers have a 10/100Mbps port and this should only affect a handful of people. If you rent the modem you could ask for a replacement but if you own the modem a new router might be cheaper. Although this episode could be a preview of other problems that could show up with upcoming upgrades and maybe it would be better to just replace the modem.
]]> http://www.dslreports.com/forum/remark,14162403 Thu, 18 Aug 2005 11:39:00 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14162379 Done_Posting : EDIT - I see my question was addressed while typing.

For what it's worth, we had extreme problems at the cable ISP I work for when we enabled BPI+ encrypted tunnelling. We're slowly enabling this feature on our network and have about half our CMTS's tunnelling now. The problem is, when we pushed the new configs, *all* SB4100's started rebooting every minute or so. SB4100's compose 3000 of our 45,000 modems so it really lit our phones up. Now, I mention this only because of the constant reboot issue you folks are seeing. We never found any correlation between the SB4100 and any routers. A lot of the folks experiencing the problem didn't have a router at all. I believe the final solution ended up coming in the form of a firmware update from Motorola.

So, I guess my question is this: Has anyone here experienced the reboot problem that is NOT running a router? I'd be interested to see if a PC connecting at 10mbps half or full duplex would run into the same problems at the 10mbps router folks...

Either way, best of luck guys!

- Tate
--
"I may work for a cable ISP, but I'm still an okay guy." ]]> http://www.dslreports.com/forum/remark,14162379 Thu, 18 Aug 2005 11:36:40 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14161431 danweber : Yes, using my PC and setting the NIC to 10Mbps has had the same effect as my old router - the modem rebooted.

Using 100Mbps on the NIC, or a router with a 100Mbps WAN port, has worked for me so far.

I am glad it has been reported. There might be another upgrade coming then....]]> http://www.dslreports.com/forum/remark,14161431 Thu, 18 Aug 2005 09:33:30 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14161288 Qumahlin :
said by danweber See Profile:

Stupid me. I can't change the WAN port speed on the router but I can use my PC and try the different variations. That's what I just did and it substantiates what we had seen before:

10Mbps Half Duplex   =>  Works for a few minutes then modem reboots
10Mbps Full Duplex   =>  Works for a few seconds then modem reboots
100Mbps Half Duplex  =>  No problem
100Mbps Full Duplex  =>  No problem

So it's clear. The SB4100 Firmware upgrade is no longer compatible with a 10Mbps connection. I guess these days most routers have a 10/100Mbps port and this should only affect a handful of people. If you rent the modem you could ask for a replacement but if you own the modem a new router might be cheaper. Although this episode could be a preview of other problems that could show up with upcoming upgrades and maybe it would be better to just replace the modem.
So setting the NIC to 100FD/HD fixed the issue for you correct? Or was it you had the router removed and when setting your nic below 100 you could mimic the same results you were seeing with your router inline?

Currently this issue is being investigated and has been reported to Motorola

--
Forum Posts:6500
]]> http://www.dslreports.com/forum/remark,14161288 Thu, 18 Aug 2005 09:08:02 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14160972 anon : I have a Linksys BEFSR41 v3 router. I do know that if the router can not load DHCP, it can tell the modem to reset. You can also have it reset by logging into the router, going to status, and clicking DHCP Release/Renew under Router.
I think it actually is a Firmware problem with the router which may not be able to be updated though. . . ]]> http://www.dslreports.com/forum/remark,14160972 Thu, 18 Aug 2005 07:47:16 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14160911 danweber : The big question now: Is there anything we can do to have Comcast and Motorola fix the problem? How would we even explain this to them since you need to get past the first line support people first, which I had no success doing and they did not understand my problem, since routers are "not supported".

It's probably not worth the trouble and routers are cheap enough these days.]]> http://www.dslreports.com/forum/remark,14160911 Thu, 18 Aug 2005 07:30:55 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14159630 StillLearn : You could see if there is a line that says

*** BOOTING *** SB4100-1.4.9.4-SCM02-NOSH

in your logs at »192.168.100.1/logs.html]]> http://www.dslreports.com/forum/remark,14159630 Thu, 18 Aug 2005 00:14:18 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14159227 wgfinley : This is definitely a problem with certain routers. I had my WGR614 hooked up direct to the modem and was getting the random modem resets. Changed places using my Vonage (Linksys) VOIP router as the one connected direct to the modem and haven't had a modem reset since.

Time for a new wireless router, I needed a reason anyway, think that new Belkin will be taking up residency soon!]]> http://www.dslreports.com/forum/remark,14159227 Wed, 17 Aug 2005 23:07:18 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14159152 Tyler Durden2 : How do I check the SB4100's firmware? I looked around at the webinterface for it, but couldn't find a location for it. I've been having random resets as well with my BEFW11S4 recently, but when I hooked the modem up to my linux router with a 100 Mb/s NIC it works fine.]]> http://www.dslreports.com/forum/remark,14159152 Wed, 17 Aug 2005 22:56:53 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14158619 danweber : Stupid me. I can't change the WAN port speed on the router but I can use my PC and try the different variations. That's what I just did and it substantiates what we had seen before:

10Mbps Half Duplex   =>  Works for a few minutes then modem reboots
10Mbps Full Duplex   =>  Works for a few seconds then modem reboots
100Mbps Half Duplex  =>  No problem
100Mbps Full Duplex  =>  No problem

So it's clear. The SB4100 Firmware upgrade is no longer compatible with a 10Mbps connection. I guess these days most routers have a 10/100Mbps port and this should only affect a handful of people. If you rent the modem you could ask for a replacement but if you own the modem a new router might be cheaper. Although this episode could be a preview of other problems that could show up with upcoming upgrades and maybe it would be better to just replace the modem.
]]> http://www.dslreports.com/forum/remark,14158619 Wed, 17 Aug 2005 21:42:51 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14158452 danweber : My router does not let me change the WAN port setting between 10 and 100 or full duplex and half duplex so I can't test that. I have a Linksys travel router somewhere that I could try but since it is a fairly new router I guess it would work fine. It seems that the problem is mostly with older routers.

I did some more testing with the old router that doesn't work properly anymore. To me it really seems as if there comes a point where the modem gets stuck because it would stop in the middle of a transmission but the modem lights would still be ok. Then it takes a little while longer and the modem reboots, I am guessing that there is an internal "heartbeat" type check and if the modem is stuck it will get rebooted. Now the question why it gets stuck in the first place. Maybe a buffer overflow or handshaking problem. Even though a 10Mbps port is still faster than the cable connection there might not be enough "reserve" bandwidth to handle it. Qumahlin's idea of a FD/HD check would be interesting since HD would certainly make this even worse. ]]> http://www.dslreports.com/forum/remark,14158452 Wed, 17 Aug 2005 21:23:29 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14157976 wgfinley : Regarding the WAN speed setting on a flyer I decided to monkey with it and my results are the same as when I first got the 4100:

AUTO: doesn't work
100M: doesn't work
10M: works

This is a Netgear WGR614 v1 which I think is about to be donated to the soon to be ex wife since she wants wireless.

Oh, and the 4100 just decided to reset itself again. This isn't a problem with the hardware, this modem was working perfectly before last night and the firmware upgrade.]]> http://www.dslreports.com/forum/remark,14157976 Wed, 17 Aug 2005 20:17:12 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14157916 wgfinley : I've got a WGR614 and it's been doing the same thing, sometimes it will go for a bit but sometimes the damn thing is rebooting every 5 minutes.

This router would not work with the 4100 at all until I turned the auto WAN speed off, set it to 10M and all has been well until this firmware "upgrade".]]> http://www.dslreports.com/forum/remark,14157916 Wed, 17 Aug 2005 20:06:59 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14157835 Qumahlin : Quick question, has anyone tried changing their nic's connections settings before just removing the router? For instance changing it from Auto to 10HD or 10FD, etc]]> http://www.dslreports.com/forum/remark,14157835 Wed, 17 Aug 2005 19:55:27 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14157038 Phil75070 : I'm here in North Texas and have been experiencing this problem since last Friday. It is even more problematic for me as I have VoIP! As annoying as the drops are when using the internet, dropping calls is a real pain. I have the WRT54G modem and it is not working! Tech is scheduled to come out this Friday.]]> http://www.dslreports.com/forum/remark,14157038 Wed, 17 Aug 2005 18:10:40 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14156641 ghordy : Same problem here on the north side of Chicago. Got the new config file for my SB4100 last night about 9:00PM and the modem has been rebooting ever since. I've got a Netgear RT311 hooked up to it. I called Comcast and they're sending out a tech with a new modem tomorrow. ]]> http://www.dslreports.com/forum/remark,14156641 Wed, 17 Aug 2005 17:21:28 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14156191 StillLearn : I was using D-link DI-804V when I had the problem.

revised »www.dlink.com.au/products/routers/di804v/ says the WAN port is only 10 Mbs. My mistake. The other ports are 10/100.

So now the firmware not working with 10 Mbs and working with 100 Mbs does not have an exception on this thread.]]> http://www.dslreports.com/forum/remark,14156191 Wed, 17 Aug 2005 16:26:17 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14156104 danweber : Very interesting, there might be a pattern developing that supports my 10/100 Ethernet theory.

Routers that work:
WRT54G 10/100Mbps WAN Port
Xincom DP-502 10/100Mbps WAN Port

Routers that don't seem to work
BEFSR41 10Mbps WAN Port
Nexland Pro 800 10Mbps WAN Port

SillLearn, you are the only one so far that claims a 10/100Mbps router does not work. Are you sure your router has a 10/100Mbs port? What model are you using?

I also noticed that the HFC T4 timeout message does not always shows up. It seems that the modem get's stuck (non-responsive) and then eventually reboots. Sometimes the T4 timeout is noted and sometimes it is not. I suspect that when the modem hangs it does not properly respond to some events on the cable line and that results in the T4 message but the real problem starts before that, when the modem starts to hang.]]> http://www.dslreports.com/forum/remark,14156104 Wed, 17 Aug 2005 16:15:35 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14155857 resmopar : My brother said his SB4100 was rebooting every couple of minutes around 6am this morning. He also lives here in Morton Grove. It disrupted him enough that he couldn't check email or pull up any websites so he gave up. For the heck of it, I logged into my SB4100 and it's logfile had some events in there I had never seen before. The only thing that jumped out at me was that the firmware was indeed updated, from 0.4.4.2 to 1.4.9.4-SCM02-NOSH. I do have it hooked up to a Linksys WRT54G router, and have not had any problems online. Everything is working as it did before the firmware update. My brother is running a Linksys BEFSR41 v2 router at his house. Below is a snip of the logfile:

050817044449 8-Debug M570.2 Motorola CM certificate present
050817044449 8-Debug M571.7 CM Cert Upgrade Enabled. AutoRun after Reg or via SNMP
050817044449 8-Debug I503.0 Cable Modem is OPERATIONAL
050817044448 7-Information B401.0 Authorized
050817044446 8-Debug F502.1 Bridge Forwarding Enabled.
050817044446 8-Debug F502.3 Bridge Learning Enabled.
050817044446 7-Information B0.0 Baseline Privacy
050817044446 7-Information X518.9 Configuration - MMFMMD - Unit Update Enabled by CVC
050817044446 8-Debug I500.1 DOCSIS 1.0 Registration Completed
050817044446 7-Information I500.4 Attempting DOCSIS 1.0 Registration
050817044446 7-Information D509.0 Retrieved TFTP Config File SUCCESS
050817044446 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D3.0 DHCP WARNING - Non-critical field invalid in response
************ 4-Error D530.8 DHCP - Invalid Log Server IP Address.
************ 5-Warning D520.2 DHCP Attempt# 2 BkOff: 5s Tot DSC:2 OFF:1 REQ:1 ACK:1
************ 3-Critical D1.0 DHCP FAILED - Discover sent, no offer received
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 42, tempSid 133
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 3-Critical R2.0 No Ranging Response received - T3 timeout
************ 7-Information T501.0 Acquired Downstream (717000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 717000000, US Id 4
************ 7-Information I510.0 *** BOOTING *** SB4100-1.4.9.4-SCM02-NOSH
************ 8-Debug M575.3 Embedded DOCSIS Root Key installed
************ 7-Information M567.0 Log cleared because it contained entries in an old format

Speedtests come back fine as well:
Preparing Speedtest . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (upload) . . . . . 739.44Kb/s
running 10s inbound test (download) . . . . . . 6.30Mb/s]]> http://www.dslreports.com/forum/remark,14155857 Wed, 17 Aug 2005 15:41:39 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14155828 danweber :
said by 232_SNR_Is_Bullsnot:

That modem should work fine with your router, I will tell you a tip though, any time you are changing the MAC address of the device to be plugged into the modem (Router to PC, Etc.), you will need to unplug the modem first as it has a "learned MAC address" from the last device and will not give you an IPA until it's been cleared.
I was aware of that and I always unplug the modem first but it did not make a difference in this case.

It has been working fine with the new router since last night so I am hopefull it will be ok for now. It still would be interesting though to know what caused the problem. ]]> http://www.dslreports.com/forum/remark,14155828 Wed, 17 Aug 2005 15:36:46 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14155799 anon : That modem should work fine with your router, I will tell you a tip though, any time you are changing the MAC address of the device to be plugged into the modem (Router to PC, Etc.), you will need to unplug the modem first as it has a "learned MAC address" from the last device and will not give you an IPA until it's been cleared.

Hope that helps.]]> http://www.dslreports.com/forum/remark,14155799 Wed, 17 Aug 2005 15:32:40 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14155775 xxxSPACExxx : "Hopefully it is not some new tricky way of Comcast to disable routers."
I'd be willing to bet that's a least part of it. I had the same problem. I changed my router to a newer version. Seemed fine for a while. But this morning, no connection. Rebooting the took about 2hrs.
--
No matter where you go...There you are.]]> http://www.dslreports.com/forum/remark,14155775 Wed, 17 Aug 2005 15:29:34 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14155463 danweber : Since you are in a different area it seems that Comcast has rolled out a new firmware for the SB4100 across different regions. I have noticed different log messages as well, the following ones in particular:

8-Debug M570.2 Motorola CM certificate present
8-Debug M571.7 CM Cert Upgrade Enabled. AutoRun after Reg or via SNMP
8-Debug I503.0 Cable Modem is OPERATIONAL
7-Information B401.0 Authorized

For some reason I seem to remember the 10/100 Ethernet subject but it might have been related to something else. Even if that's not the problem there is something that the new firmware does not like with some routers. Hopefully it is not some new tricky way of Comcast to disable routers.

My old router was a Nexland ISB Pro800 and the new router is a Xincom DP-502.

Maybe a Comcast tech could shed some light on this?
]]> http://www.dslreports.com/forum/remark,14155463 Wed, 17 Aug 2005 14:51:37 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14154976 StillLearn : I am having a rather similar symptom. Reboot is not every minute, but it started last night. At least that is when I turned on ping plotter to account for lags.

Here is a portion of the log


************ 7-Information I510.0 *** BOOTING *** SB4100-1.4.9.4-SCM02-NOSH
050817124358 7-Information H501.2 HFC: Shutting Downstream Down
050817124358 2-Alert T507.0 Received Async Error Range Failed
050817124358 3-Critical R4.0 Received Response to Broadcast Maintenance Request, but no Unicast Maint
050817124358 3-Critical H501.8 HFC: T4 Timer Expired
050817123254 8-Debug M570.2 Motorola CM certificate present


Signal strength is good when things are working.

correction: My DI-804V router is 10/100 for the LAN ports, but only 10 for the WAN port to the Modem.
I had noticed different things in the logs than I remembered before, and I had not noticed the lack of modulation type info until you mentioned it. So I think there may well be a shared problem with this firmware.

update: I switched to a different router. No reboot in 20 minutes. That is not definitive, since I had had intervals of over half an hour without reboots since the problem started. But I am already past the average reboot interval.

Update 2:Over an hour and 20 minutes now. I think that indicates success.

I wonder how what is hooked to the Ethernet port would cause the modem to get T4 Timer Expired reboots. Those seem as if they should be independent of each other.

Thank you for posting your experience with this. It has been very useful to me.]]> http://www.dslreports.com/forum/remark,14154976 Wed, 17 Aug 2005 13:56:29 EDT Re: SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14152983 Redhook01 : Hmmm, I am having the same problem today with my 4100. When I get home from work I will have to try bypassing the router. Thanks for the info!]]> http://www.dslreports.com/forum/remark,14152983 Wed, 17 Aug 2005 09:32:32 EDT SB4100 Upgraded and now router don't work http://www.dslreports.com/forum/remark,14152519 danweber : I am in South Florida and yesterday evening my SB4100 modem started to constantly reboot itself, every minute or two.

I looked at the modem status page and realized that the firmware was upgraded. I first realized it when the signal page no longer displayed the modulation type. Checking the version revealed SB4100-1.4.9.4-SCM02-NOSH which was newer than what I had (I had 0.4.xxx something).

So I called Comcast to see if there is some active maintenance that would cause the modem to reboot. They said no and suggested to connect the modem to the PC directly, no router.

Oh wow - That worked. The modem stopped rebooting. Then I connected the router again and the modem started rebooting again. Remove the router and everything was fine again. I looked through my closet and found a different router and connected it. This router works fine now, no more reboot of the modem.

I seem to remember that there was a problem mentioned in this forum about the SB4100 and 10Mbps LAN connections. The router that does not work anymore has a 10Mbps only WAN port whereas the router that does work now has a 10/100Mbps WAN port. Could that indeed be the problem?

Thanks]]> http://www.dslreports.com/forum/remark,14152519 Wed, 17 Aug 2005 07:32:19 EDT