Blast 16/2 running at half speed in Comcast HSI http://www.dslreports.com/forum/r20209087 en Sat, 05 Dec 2009 19:52:05 EDT Sat, 05 Dec 2009 19:52:05 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20306134 cabledsl : The latest in my saga. . .

I called comcast tonight because I am still speedtesting @ about 4000mbps. Some of my downloads get up to about 400kb/sec and then die down to about 200. Most of them stay around 200 or so.

I called Comcast and told them that, since I am getting 1/6th of my advertised speed I should only have to pay 1/6 of my bill. I guess they didn't think I was funny and decided to counter with their own comedy. The guy on the phone blamed my slow service on earthquakes and sounded amazed when I told him I had blast which was rated at 16mbps. Sounded like he hadn't heard of it before. I told him the speeds I was getting and he sounded like I should be happy with that.

Sigh. Anyway, they are going to roll a truck tomorrow to test my wires. . blame the problem and me and end up charging me for the visit. I'll let you know how it goes.]]> http://www.dslreports.com/forum/remark,20306134 Wed, 09 Apr 2008 00:37:51 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20271954 Johkal :
said by justjoe :

i've tested again this time on the wired port from the linksys not the wifi ports and now am getting 31MB down.

looks like the linksys wifi can't keep up despite being a 802.11g wireless router.
It's not the router, it's most likely how you configured it.
I have a Linksys WRT54G v4 and get every bit of PowerBoost and had excellent speeds when I subscribed to the 16/2 tier.
--
Write me up a 125.......I Can't Drive 55 »redrocker.com/ »cabowabo.com/]]> http://www.dslreports.com/forum/remark,20271954 Wed, 02 Apr 2008 18:23:55 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20268600 daveinpoway : See this: »Optimum Online FAQ »What Routers are Compatible with OOL's 15/2 and 30/5 (BOOST) Plans? for a list of routers that will achieve the proper speeds.]]> http://www.dslreports.com/forum/remark,20268600 Wed, 02 Apr 2008 06:14:01 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20268058 anon : i've tested again this time on the wired port from the linksys not the wifi ports and now am getting 31MB down.

looks like the linksys wifi can't keep up despite being a 802.11g wireless router.]]> http://www.dslreports.com/forum/remark,20268058 Wed, 02 Apr 2008 00:26:52 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20267602 anon : I'm in N.Indiana on Blast2. Speeds seem ok.11:00pm test

»www.speedtest.net/result/253993258.png]]> http://www.dslreports.com/forum/remark,20267602 Tue, 01 Apr 2008 23:01:08 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20267111 anon : i get about 5/6mbdown from dslreports and 6/7mb down from speedtests and also about 6/7 from speakeasy.net ... I am in the glen park area in san francisco.. the conection speed isnt bad, it is just not what i paid for and I also get frequent disconnects... which is very annoying.. and a lot of webpages take forever to load.. I have a 6mb connection at my other house and its running much better than this one is.]]> http://www.dslreports.com/forum/remark,20267111 Tue, 01 Apr 2008 21:42:22 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20262131 anon : URL=http://www.speedtest.net] [/URL]

Good up speed but one half of down. No matter what test, I max out at about 6000kps. So this Blast?]]> http://www.dslreports.com/forum/remark,20262131 Tue, 01 Apr 2008 06:00:14 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20261498 t3ch2000 : i had this service for about 7+ years now, and i'm also getting the same problem as you, never seen my connection go down this much in awhile, I have no reason to call comcast about it because i have lived thrue this for 7+ years and i'm pretty much use to this and I have called comcast about this a couple of times, but it looks to me that this is a internal network problem.

]]> http://www.dslreports.com/forum/remark,20261498 Tue, 01 Apr 2008 00:19:03 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20261415 Shadowdane : Yah I'm having some crazy slow connection problems lately on my Blast service.
Back in February when I got connected with Blast it was very fast! And was running fine for at least a month.


But I noticed about 2-3 weeks ago things getting a little slower, Noticed my connection dropped to around 12mbps, then 10mbps, 8mbps then 6mbps.
Now I'm lucky if I get 3mbps! What the hell! :(
]]> http://www.dslreports.com/forum/remark,20261415 Mon, 31 Mar 2008 23:57:44 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20258741 Johkal : Rwin is by opinion. I recommend 128480 as a minimum.]]> http://www.dslreports.com/forum/remark,20258741 Mon, 31 Mar 2008 15:44:01 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20254661 anon : What is the Rwin setting for the new speed?]]> http://www.dslreports.com/forum/remark,20254661 Sun, 30 Mar 2008 20:20:36 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20254197 Johkal : 16/2(16000/2000)is provisioned at 17600/2200. Any speeds above 17600/2200 is PowerBoost.
--
Write me up a 125.......I Can't Drive 55 »redrocker.com/ »cabowabo.com/]]> http://www.dslreports.com/forum/remark,20254197 Sun, 30 Mar 2008 18:47:16 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20253720 anon : I have blast and plugging directly into the modem i get 31,000kbps down but when plugged into my linsksys WRT54Gv5 (latest firmware 1.02.5) I get 12,000 kbps consistently.

Have 3 computers, 2pc 1 mac - all get the same /similar results. my bottleneck appears to be the linksys.

Any suggestions on what to put in as a replacement for a Firewall / NAT device that won't choke on 31Mbps ?]]> http://www.dslreports.com/forum/remark,20253720 Sun, 30 Mar 2008 17:08:48 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20253372 mig288 : Here is what I'm getting on my speed tests. Not bad. There is just no powerboost with this new tier.



Click for full size
Speed test
]]> http://www.dslreports.com/forum/remark,20253372 Sun, 30 Mar 2008 15:46:07 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20251064 cabledsl : Actually my speed tests here at DSLReports are slower than those over at speedtest.net. My speed registers in the 3mbps range here but 6mpbs over there.

Looks like I need to move to Marin.

has anyone heard any rumors about any network problems here in this neck of the woods? So disapointing that people South of here have 30mbps spurts and people north of us have 18mpbs. Hopefully this issue resolves itself soon. . .





Steve ]]> http://www.dslreports.com/forum/remark,20251064 Sun, 30 Mar 2008 03:40:05 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20250127 anon : Do you have cable services or just internet ? If just internet then 8 mb is the blast package . You should only get 16 with at least basic cable.]]> http://www.dslreports.com/forum/remark,20250127 Sat, 29 Mar 2008 22:06:16 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20249284 Cheddah :
said by beerbum See Profile :

do you get the same results using tests at »www.speedtest.net ?
I live in Marin, just 15 mins north of SF and got 18401/2600.

]]> http://www.dslreports.com/forum/remark,20249284 Sat, 29 Mar 2008 19:11:33 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20248770 iamdak : I'm in Ingleside; has anyone in the SF area tried Astound service?]]> http://www.dslreports.com/forum/remark,20248770 Sat, 29 Mar 2008 17:20:16 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20246074 cabledsl : I am in San Francisco and am having the same problem as both of you guys. I live off of Paul Ave. and my slowdowns started on the 15th. I've been around 5 mbps since then. I sometimes spike to 10 during the test but it isnt the 16 i should be getting. Doesnt matter what time of day. Are you guys close to me? Wondering if it is our node that is trashed.

It started out great at 14/15 mbps and has slid downhill since.

Thanks. . .]]> http://www.dslreports.com/forum/remark,20246074 Sat, 29 Mar 2008 03:43:35 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20241226 anon :
said by luckystreich See Profile :

just remember, your 16/2 is not guaranteed. It is up to that speed...

with AT&T's DSL of 6.0 mbps (if you can get it) - you can virtually guarantee you will get 4800 kbps all the time.... cable offers a higher potential but there will be variances in speed.
Does anyone here in the San Francisco area get a consistent ~16Mbps with their Blast connection at home?]]> http://www.dslreports.com/forum/remark,20241226 Fri, 28 Mar 2008 12:13:13 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20232834 anon : I am rebooting after each tweak and I am getting 8500'ish down consistently on pretty much every speed test I've tried. My up is a consistent 3000 which is fantastic tho :D]]> http://www.dslreports.com/forum/remark,20232834 Thu, 27 Mar 2008 03:43:30 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20230988 EG :
said by iamdak :

Tried on my desktop; no dice. Still getting 8000-8500 average.
Are you re-booting your computers after performing the tweaks ?]]> http://www.dslreports.com/forum/remark,20230988 Wed, 26 Mar 2008 20:15:42 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20224907 beerbum : do you get the same results using tests at »www.speedtest.net ?]]> http://www.dslreports.com/forum/remark,20224907 Tue, 25 Mar 2008 19:24:20 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20223923 luckystreich : just remember, your 16/2 is not guaranteed. It is up to that speed...

with AT&T's DSL of 6.0 mbps (if you can get it) - you can virtually guarantee you will get 4800 kbps all the time.... cable offers a higher potential but there will be variances in speed.]]> http://www.dslreports.com/forum/remark,20223923 Tue, 25 Mar 2008 16:36:05 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20223056 anon : oO, I had a tech come out to my house too. He checked everything and it was fine on my end also.... this is quite irritating.. he said someone will check the line up the pole the next day.. no one came. I called comcast and apparently they canceled that appointment.. Not cool how I'm paying for what I'm not getting.]]> http://www.dslreports.com/forum/remark,20223056 Tue, 25 Mar 2008 14:13:55 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20223037 anon : I'm getting the same problem.. but I'm hitting 6/7down and 2up.. kind of irritating to know that when i had 6mbps it ran faster.]]> http://www.dslreports.com/forum/remark,20223037 Tue, 25 Mar 2008 14:11:17 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20222015 anon : So the Comcast tech just left and he said everything was fine on my end. He's going to file a report to their network and... well thats all he said.

Was getting test speeds of 6-7mbs while he was here, hope it gets fixed.]]> http://www.dslreports.com/forum/remark,20222015 Tue, 25 Mar 2008 11:08:44 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20215261 anon : Hrm, well I talked to a tech earlier and said the signals from my modem were fine. But speed results showed 9mbs dl/ 2mbs ul. They will be sending someone over on Tuesday morning to check on it. I'll make another post if they find the cause.]]> http://www.dslreports.com/forum/remark,20215261 Mon, 24 Mar 2008 01:48:48 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20214767 Anyuser2 :
said by nitros22 See Profile :

This looks like this speed problem is going all over the comcast network. Someone needs to wake up at comcast engineering and see what's going on.
I'm having absolutely zero problems. I don't know anybody personally who is having any problems. You're all in totally different markets, and while you are having some similar issues they are completely and utterly seperate, isolated problems. Particularly your problems browsing - you need to troubleshoot your connection.

This is not some kind of national problem.

This is what I'm getting with the 16/2 at work (I get similar results with my 16/2 connection at home): ]]> http://www.dslreports.com/forum/remark,20214767 Sun, 23 Mar 2008 23:12:01 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20214737 nitros22 : Its horrible i am paying 64.99 for 16 meg and i am not even getting it. But now the problem is not only the speed but the fact that my service is not working the way it should be. I cant get webpages to come up at times its just a huge mess. This looks like this speed problem is going all over the comcast network. Someone needs to wake up at comcast engineering and see what's going on. ]]> http://www.dslreports.com/forum/remark,20214737 Sun, 23 Mar 2008 23:04:57 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20214708 anon : My internet was activated on Saturday (yesterday). I've since noticed it go as far as 11.5Mbps with the rare spike to 14, but it averages about 8.5Mbps. I feel its worth mentioning that 8.5Mbps is still fantastic, but I'm trying to gauge whether its worth getting a slower (cheaper) service instead of paying for 16Mbps and getting only 8.]]> http://www.dslreports.com/forum/remark,20214708 Sun, 23 Mar 2008 22:58:20 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20214675 nitros22 : This is the same issue in chicago. I dont think comcast has he capacity to do this yet and they just up and did it. i cant get it fixed and am ready to change providers to actually get some kind of internet. My internet isn't working well either. ]]> http://www.dslreports.com/forum/remark,20214675 Sun, 23 Mar 2008 22:50:38 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20214509 peteyturbo : Sounds like we may have the same problem]]> http://www.dslreports.com/forum/remark,20214509 Sun, 23 Mar 2008 22:13:25 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20211998 anon : When did you exactly get your service? I was hitting 16mb mark the past week but it dropped to 8-9mb mark yesterday to today. I live in San Fran as well.]]> http://www.dslreports.com/forum/remark,20211998 Sun, 23 Mar 2008 11:55:52 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20210257 anon : Tried on my desktop; no dice. Still getting 8000-8500 average.]]> http://www.dslreports.com/forum/remark,20210257 Sat, 22 Mar 2008 23:31:03 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20210227 anon : Using the suggested app I put the RWIN to 300,000. The speed tests still come out to 8500 avg.

I'll try it again though on my desktop!]]> http://www.dslreports.com/forum/remark,20210227 Sat, 22 Mar 2008 23:24:04 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20210192 hobgoblin :
said by iamdak :

-----

Both suggest an RWIN of between 154760 and 410260.
You might want to do that then!

Hob
--
"A foolish consistency is the hobgoblin of little minds."
- Ralph Waldo Emerson
]]> http://www.dslreports.com/forum/remark,20210192 Sat, 22 Mar 2008 23:16:08 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20210129 anon : Laptop:

---

Receive Window (RWIN): 65535
Window Scaling: off
Path MTU Discovery: ON
RFC1323 Window Scaling: OFF
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1460
TTL: unknown
TTL remaining: 108
TOS flags: none set

---

Actual data bytes sent: 1026921
Actual data packets: 705
Max packet sent (MTU): 1500
Max packet recd (MTU): 1500
Retransmitted packets: 2
sacks you sent: 75
pushed data pkts: 95
data transmit time: 3.721 secs
our max idletime: 314.5 ms
transfer rate: 247515 bytes/sec
transfer rate: 1980 kbits/sec
transfer efficiency: 99%

---

Minimum ping: 98.57 ms
Maximum ping: 113.58 ms
Ping stability:
98.57 99.45 99.31 113.58 102.64 99.98 108.41 109.38 99.59 99.22

-----

Both suggest an RWIN of between 154760 and 410260.]]> http://www.dslreports.com/forum/remark,20210129 Sat, 22 Mar 2008 23:01:30 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20210093 anon : Desktop:

---

Receive Window (RWIN): 65535
Window Scaling: 0
Path MTU Discovery: ON
RFC1323 Window Scaling: ON
RFC1323 Time Stamping: OFF
Selective Acks: ON
MSS requested: 1460
TTL: unknown
TTL remaining: 108
TOS flags: none set

---

Actual data bytes sent: 1031301
Actual data packets: 708
Max packet sent (MTU): 1500
Max packet recd (MTU): 1500
Retransmitted packets: 5
sacks you sent: 71
pushed data pkts: 128
data transmit time: 7.072 secs
our max idletime: 235.3 ms
transfer rate: 138267 bytes/sec
transfer rate: 1106 kbits/sec
transfer efficiency: 99%

---

Minimum ping: 98.27 ms
Maximum ping: 102.79 ms
Ping stability:
99.55 99.60 102.79 100.57 99.43 98.27 99.15 101.26 102.32 99.56

:: Laptop in a min ::]]> http://www.dslreports.com/forum/remark,20210093 Sat, 22 Mar 2008 22:55:03 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209750 Johkal : Run a tweak test on both and post results: »/tweaks]]> http://www.dslreports.com/forum/remark,20209750 Sat, 22 Mar 2008 21:34:26 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209446 anon : The TCP settings in windows for both PCs are the standard Obtain IP and DNS automatically. Is there something more specific I can dig up?

(and I rebooted and reset everything several times ;) )]]> http://www.dslreports.com/forum/remark,20209446 Sat, 22 Mar 2008 21:03:57 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209424 anon : yup! Tried rebooting the modem and my computers. I also tried reseting the modem by tapping the reset button and by holding it down for 15-20 seconds.

I'm still getting an average down rate of 8500 kbps.]]> http://www.dslreports.com/forum/remark,20209424 Sat, 22 Mar 2008 21:03:36 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209410 Johkal : What are the TCP settings for the PC & laptop?]]> http://www.dslreports.com/forum/remark,20209410 Sat, 22 Mar 2008 20:27:09 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209385 anon : Did you try rebooting the cablemodem? :)]]> http://www.dslreports.com/forum/remark,20209385 Sat, 22 Mar 2008 20:21:53 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209287 anon : Ok -- so I did some extra digging and was able to get my modem to display the config file info. This is what the log showed:

SW Download INIT - Via Config file d11_m_dcm425_speedtierextr...

'speedtierextr' seems to be the config file name.]]> http://www.dslreports.com/forum/remark,20209287 Sat, 22 Mar 2008 20:03:30 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209230 anon : :D Honestly... it took me a bit to find where I typed it also; something that important should probably stand out better :)

I'm not exactly sure which config file you're refering to. If I missed a link to something explaining this I'd appreciate that very much. The diagnostics page of the modem isn't very informative beyond what I pasted above but from poking about the web I believe the modem goes up to 32Mbps (though I could be dreadfully mistaken :p).]]> http://www.dslreports.com/forum/remark,20209230 Sat, 22 Mar 2008 19:52:43 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209193 Anyuser2 : My bad, it was more of a passing mention and it didn't really stand out when I looked over what you'd posted.

I'd definitely try and check your config file, or what the modem reports the speed caps at.]]> http://www.dslreports.com/forum/remark,20209193 Sat, 22 Mar 2008 19:43:00 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209119 anon : As I stated; I tried both my desktop and and laptop directly connected via ethernet to the modem itself. They both reported 8Mpbs with about 3Mbps up consistently. As per the diagnostics of my modem:

----
Forward Path:
Signal Acquired at 723.000 MHz
SNR: 34.7 dB
Received Signal Strength: -8.7 dBmV
Bit Error Rate: 0.000 %

Return Path:
Connection: Acquired
Frequency: 32.0 MHz
Power Level: 47.3 dBmV
Channel ID: 7
Modulation: 16 QAM]]> http://www.dslreports.com/forum/remark,20209119 Sat, 22 Mar 2008 19:25:54 EDT Re: Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209097 Anyuser2 : You don't have anything listed here about your setup or your levels, outside of the model of your modem...

I didn't get speed test results that were consistent with 16/2 until I did a firmware update on my older Linksys router. Of course, I didn't both to try that until I had confirmed that my Scientific Atlanta DPC2100 had the right bootfile.]]> http://www.dslreports.com/forum/remark,20209097 Sat, 22 Mar 2008 19:19:13 EDT Blast 16/2 running at half speed http://www.dslreports.com/forum/remark,20209087 anon : I just got comcast's Blast service but from all the tests I've run I only seem to be reaching 8Mbps. I've googled variations of this problem but have not been able to find either a solid solution or explanation.

My tests have been a consistant:


I also tried downloading three large files from fast servers using a bandwidth meter to monitor my speeds but it peaked at about 11Mbps.

I'm in the southern part of San Francisco; the modem I'm using is the RCA DCM425. I tried both my laptop and my desktop PCs hooked directly into the cable modem but got the same results.

Is this just the nature of the Blast service?]]> http://www.dslreports.com/forum/remark,20209087 Sat, 22 Mar 2008 19:15:53 EDT