Topic 'Re: Should we have a Docsis 3.0 capable modem?' in forum 'Comcast HSI' - dslreports.com

Re: Should we have a Docsis 3.0 capable modem?

Thu, 05 Jul 2012 14:21:23 EDT

Mike Wolf posted : I have four downstream bonded channels and three upstream bonded channels and I'm on Blast. I think the concept of multiple bonded channels is to balance the demand equally across all the channels instead of overtaxing just one which would cause a noticable slowdown?

Re: Should we have a Docsis 3.0 capable modem?

Thu, 05 Jul 2012 14:05:36 EDT

PGHammer posted : That is, in fact, precisely why I pointed that out.

I have four bonded channels downstream, and three upstream - and that is with Performance, not Blast. (The four downstream bonded channels I've had since I've had this modem; the three upstream channels are the result of CMTS changes.) For that reason alone, any reliability issues - peak-usage times or not - are pretty much certain to be outside of Comcast's control.

Basically "reliability, reliability, reliability".

Re: Should we have a Docsis 3.0 capable modem?

Tue, 03 Jul 2012 10:43:32 EDT

anon posted : So much wrong information again. Having a d3 cmts does not guarantee channel bonding. Software must be pushed to the modem instructing it to do so, and if your tier software does not say to, it will not. Economy for my FFO did not when it was 1.5Mb [yes I waited way to long for lights to go blue on ubee modems] and I have not done an install since it went up from that speed yet. Performance tier, historically has bonded since we went to D3 in Nov 2010. Not only that but the amount of control in the cmts itself, would allow for that software to be ignored and the request by the modem to be rejected, so its entirely configurable and could thus be different from cmts to cmts even.

Do not buy a D3 modem on the hopes of getting something for nothing, you might, but you might not, there is no requirement anywhere to "give" this until you subscribe to a speed that needs it. The benefits for congestion management by the CMTS are greater, but congestion can be managed with a D2 modem by forcing it to change channels. it just inconveniences the subscriber because a reboot is required, without channel bonding. Buy the D3 modem because you want a NEW modem and its available in your budget. That's the bottom line right there.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 02 Jul 2012 22:07:58 EDT

SysOp posted : This is good info. Thanks for the update!

Only $86 for a D3 modem. Not a bad investment if your node is congested by D2 modems. Or free if you rent.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 02 Jul 2012 18:44:40 EDT

NetFixer posted :

said by SysOp:

Sorry, I read that economy and performance do not use multiple bonded channels like Blast does.

So, what you are saying is that with the economy tier I would get channel bonding with a D3 modem?

A picture is worth a thousand words, so here is my 1000 word reply (I am on a 12/2 Business Class starter tier):

[att=1]
--
History does not long entrust the care of freedom to the weak or the timid.
-- Dwight D. Eisenhower

Re: Should we have a Docsis 3.0 capable modem?

Sun, 01 Jul 2012 16:41:17 EDT

EG posted :

said by SysOp:

Sorry, I read that economy and performance do not use multiple bonded channels like Blast does.

So, what you are saying is that with the economy tier I would get channel bonding with a D3 modem?

As was stated, if multiple bonded channels are configured / present on the local CMTS / system, a DOCSIS 3 compliant modem will lock on to and utilize them regardless of the subscribed to speed tier.

Re: Should we have a Docsis 3.0 capable modem?

Sat, 30 Jun 2012 18:36:49 EDT

PeteC2 posted :

said by SysOp:

Sorry, I read that economy and performance do not use multiple bonded channels like Blast does.

So, what you are saying is that with the economy tier I would get channel bonding with a D3 modem?

Don't have economy, so that I can't comment on, but as for performance tier, yes, I have multiple bonded channels.
--
Deeds, not words

Re: Should we have a Docsis 3.0 capable modem?

Sat, 30 Jun 2012 14:40:43 EDT

anon posted : It's not done by tier, it's just a network function. That's like saying you only subscribe to 10Mbps plan so your modem would change the speed of it's WAN port to max out at 10Mbps instead of 1Gbps or even 100Mbps. It doesn't work that way.

The configuration file that's downloaded to your modem is what tells the modem what your limit is and it uses that information to control how fast it allows data. If the CMTS supports X channels and the modem does also, the CMTS will tell the modem to connect using that many or there will be problems connecting if it doesn't comply.

Re: Should we have a Docsis 3.0 capable modem?

Sat, 30 Jun 2012 12:54:23 EDT

SysOp posted : Sorry, I read that economy and performance do not use multiple bonded channels like Blast does.

So, what you are saying is that with the economy tier I would get channel bonding with a D3 modem?

Re: Should we have a Docsis 3.0 capable modem?

Sat, 30 Jun 2012 11:26:40 EDT

EG posted : I agree with PGHammer ! There is no doubt about the increased capacity / reduced congestion benefits of having multiple bonded channels. The bigger pipe helps to insure that all of the users who share the cable segment / node will receive their subscribed to speeds even during times of peak usage. It's a win win for both the customer and the provider.

Re: Should we have a Docsis 3.0 capable modem?

Sat, 30 Jun 2012 08:54:20 EDT

SysOp posted : If you are renting a modem sure why not, other than it's a waste of time and gas.

Don't rush out and buy a D3 if you are not on blast. The increased performance is called power boost, it's not sustained and is only for the first 20MB on the performance tier.

AS far as connection reliability, quality of signal is the contributing factor there.

Re: Should we have a Docsis 3.0 capable modem?

Sat, 30 Jun 2012 08:06:01 EDT

PGHammer posted :

said by m29a:

In september we upgraded from Performance speed tier to Blast! and we still have the old modem which is the Arris TM502G. I have read threads on the forums that have said that if you are on the Blast tier or above, you should have a DOCSIS 3.0 capable modem. Well today we tried to call and the guy said we go to speedtest and test our connection. The problem is, since we upgraded from Performance to Blast the speed has been the same ever since. And also I would think we should have a Docsis 3.0 capable modem considering we are no longer on the Performance speed internet tier. I thought that maybe it's because we are still using the same modem ever since. Can anyone give some information on this?

You should upgrade to D3 anyway - Blast tier or not. I did over a year ago, and I'm still on the Performance tier. The increased performance (and connection reliability) afforded by channel bonding are SO worth it.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 17:55:39 EDT

m29a posted : Okay we just swapped our TM502G for a TM702G and speeds have went from 30/2 to 35/5. So wow there is a bit of a difference in terms of switching from a D2 to a D3, this is on the Blast! tier however.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 16:45:39 EDT

PeteC2 posted :

said by plencnerb:

I do agree that a modem that supports IPv6 right now is not a "must have" but a "nice to" have.

Since you indicated you were able to take both your modems and have them swap them out for a D3 eMTA, I don't see why I could not go down to my local office and do the same. If you don't mind me asking, which D3 eMTA did you get? This way, I can ask for a specific one (if they have it).

Also, how do I know if I'm in a Docsis 3.0 area? Is there a link that I can check to see?

I do agree, its nice to have the compatibility right up front, just saying that IPv6 would not be the driving force behind what Comcast sends out...yet anyway.

Comcast sent me the Arris TM722G eMTA, though I understand they also have other D3 eMTAs. Do not go for a wireless gateway D3 eMTA...unless you have them bridge it, and you use your own router.

Many if not most areas are now Docsis 3.0. An easy way to tell if your area is, would be if the Extreme tiers are offered in your area, as they only operate under Docsis 3.0
--
Deeds, not words

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 12:31:23 EDT

Mike Wolf posted : true but the majority of manufacturers seem to abandon creating the new firmware to support the older modems (so you buy their new one) or the ISP simply don't roll out the new firmware to support it because they want customers to use new modems do to the benefits of what D3 offers.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 12:22:04 EDT

Mike Wolf posted : No what I was saying was I'm not aware of any D3 voice modems that Comcast offers, but that they may and I could be wrong. One option you could go with would be to rent a D3 modem and rent a D2 voice modem if you could afford it, but another option would be to own your own D3 modem and just rent the D2 voice modem. Idealistically owning your own D3 voice modem would be best but that being a viable option doesn't seem possible quite yet. Yes you would need to split the data line between the two modems. Personally in my own house I have one line that goes into the basement that connects to a two way splitter, one line goes to the modem and the other line goes into a four way splitter. I agree that its sort of a pain in the ass to have two physical modems and I know that Motorola makes D3 voice modems »www.motorola.com/Video-Solutions···e-Modems but can't find it easily for sale legitimately. In my experience just because a modem is on the approved list or that it is available for purchase doesn't mean Comcast is required to activate it or if its a very new product even able to activate it.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 10:52:59 EDT

plencnerb posted : I have the triple play (Comcast TV, Comcast Digital Voice, and Comcast Internet, at the Performance level). I do agree that a modem that supports IPv6 right now is not a "must have" but a "nice to" have. I was just thinking ahead, and if the modem I have would support it or not without having to swap it out later.

I also agree that the modem I have is great. It was easy to setup, and so far, has not given me any issues.

Since you indicated you were able to take both your modems and have them swap them out for a D3 eMTA, I don't see why I could not go down to my local office and do the same. If you don't mind me asking, which D3 eMTA did you get? This way, I can ask for a specific one (if they have it).

Also, how do I know if I'm in a Docsis 3.0 area? Is there a link that I can check to see?

Thanks in advance for all the info! :)

--Brian
--
============================
--Brian Plencner

E-Mail: CoasterBrian72Cancer@gmail.com
Note: Kill Cancer to Reply via e-mail

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 10:27:06 EDT

bgoodbody posted : »mydeviceinfo.comcast.net/

This tells what comcast say you should have

Blast = D3
--
- Bill

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 09:51:46 EDT

PeteC2 posted :

said by plencnerb:

.... I take it home, swap it out with my old one, and get everything up and running. Phone does not work yet, as it takes about 3 business days to port the number over. But, that's not a big deal, and when the switch took place, I had no issues getting everything running.

The new modem I got is a Thomson Internet Voice Modem, Model # DHG536. I don't know if mine is NCS or IMS, from the list you linked to.

However, this is a D2 modem, and the list currently shows that it does not support IPv6.

So, my question then becomes this...obviously on May 18th, Comcast was less then a month (19 days to be exact) away from turning on IPv6. Why would they swap my old modem out for one that apparently does not support IPv6?

A little clarification:

First, IPv6 is not yet a must have...eventually yes, but not now, so it is not a suprise in terms of IPv6.

Second, based on where you are, several hardware packages can be available. For example, I have both internet & voice, on the performance tier, and for a self-install, Comcast sent me both the Thompson DHG536 D2 eMTA along with the Cisco DPC3008 (Docsis 3.0) modem. That was too much signal splitting for my set up, so I called them and they cheerfully swapped the D2 eMTA and D3 modem for a D3 eMTA.

I suspect that if you ask...even if it may take a little "push"...you can probably get a D3 eMTA sent out. Sometimes, it is all a matter of which "account executive" you talk to...

An alternative, is if you have a local Comcast office, bring in your D2 eMTA and push for a swap. There is nothing wrong with the D2 thompson, but, if you are in a Docsis 3.0 area, you really want the channel bonding that a D3 modem/eMTA provides.
--
Deeds, not words

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 08:59:12 EDT

nate1234 posted : There are actually some DOCSIS 2.0 devices that support IPv6.

"The 'DOCSIS 2.0 + IPv6' specification also allows support for IPv6 on DOCSIS 2.0 cable modems (via a firmware upgrade)"

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 08:54:29 EDT

Markart posted : You must have a Docsis 3.0 cable modem if you want to access at Docsis 3.0 speeds and Blast speedtier is based on Docsis 3.0. For example, if one has a cable modem that only supports DOCSIS 2.0, and the system is running 3.0, the connection will be established at DOCSIS 2.0 speeds. And DOCSIS 2.0 modems do not support IPv6 only DOCSIS 3.0 supports IPv6. Arris TM502G only supports DOCSIS 2.0. So there is no use in resetting or troubleshooting your modem.

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 07:46:59 EDT

plencnerb posted :

said by Mike Wolf:

To be completely honest I would purchase my own D3 modem because renting a separate D3 modem plus a voice modem tends to add up.

So, if I understand you correctly, Comcast does not offer a D3 Voice Modem to rent at all? If I were to rent totally from them, I would have to rent a D3 modem (so I could get faster speeds, improved performance, and IPv6 support) as well as my current D2 Voice modem? In that case, would I then have to split the Coax coming into the house on the data line? Right now, on the back of the house, my line is split outside..one line goes to my room where the Voice Modem is, and the 2nd line goes to feed the 2 TV's in the house (which, does have a 2nd split, but its downstream from the 1st). If I were to have 2 actual modems, would I have to split the data line myself? Seems kind of a pain to me, not to mention I would have 2 physical cable modems. It just does not seem right to me..I would think that someone would make a D3 Voice modem, that I can either purchase outright(and be supported by Comcast), or rent directly from Comcast.

said by Mike Wolf:

Comcast payment offices, technical support on both the phone and online chat, installers, and technicians literally have no idea what the engineers are doing two days in advance. The left hand (the part that deals with the public) and the right hand (the part that actually makes the decisions and make things happen) never talk to each other.

I do totally agree with you on this point. It's sad really when you think about it. In a perfect world, both of these groups would know what the other is doing, and all kinds of issues and problems could be eliminated.

--Brian
--
============================
--Brian Plencner

E-Mail: CoasterBrian72Cancer@gmail.com
Note: Kill Cancer to Reply via e-mail

Re: Should we have a Docsis 3.0 capable modem?

Mon, 11 Jun 2012 00:13:23 EDT

Mike Wolf posted :

said by plencnerb:

Should I go back in there and ask for another modem? If so, which one should I try to get? The local office is not far from me (less then 1 mile), so its not that big of a deal to go over there.

To be completely honest I would purchase my own D3 modem because renting a separate D3 modem plus a voice modem tends to add up. I know that in some areas serviced by Comcast you can purchase your own voice modem from BestBuy but I don't know where those would be and if you are in such an area and if those that are sold support D3 as well. I've read from others on the forum that they have both a D3 modem that they own on their account as well as renting a voice modem from Comcast. Maybe that is an option to consider?

said by plencnerb:

So, my question then becomes this...obviously on May 18th, Comcast was less then a month (19 days to be exact) away from turning on IPv6. Why would they swap my old modem out for one that apparently does not support IPv6? I know I needed a different modem then the one I had, as that did not support Comcast Digital Voice. But, I would have thought they would have given me a modem that supported both Digital Voice, and IPv6.

Ok, to answer this part.
Comcast payment offices, technical support on both the phone and online chat, installers, and technicians literally have no idea what the engineers are doing two days in advance. The left hand (the part that deals with the public) and the right hand (the part that actually makes the decisions and make things happen) never talk to each other. This issue has been experienced many times when trying to find out the cause of service interruptions, system upgrades, channels being added or removed, when Docsis 3.0 service will be brought into an area, speed increases, dealing with the emergency alert system upgrades, what set top boxes and modems are available for rent in any given area. In my experience at least, the payment offices have no publicly listed incoming phone number either so you have to call the 800 number which doesn't get you far when trying to find out specific information.

Some say exact dates and timeframes are not given to the public in case something comes up that causes delaying of a scheduled rollout, such as the IPv6 debacle with the Netgear modems in California.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 23:57:19 EDT

m29a posted : Okay I just got off chatting with Comcast support and I am going to be going to a service center and attempt swapping my modem for a Docsis 3.0 modem. I will post how speeds change (hopefully) and I hope I'll have the correct config when I setup my new modem.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 23:30:34 EDT

plencnerb posted : That is what I figured.

Now, we all know that June 6th was the big day for IPv6...keep that in mind, as I explain things...

Back on May 18 of this year, I went into my local Comcast office and added Comcast Digital Voice to my service (I had an AT&T POTS Line, and ported the number over). In doing this, the local office told me that I would need a "new" modem. At the time, I had a Scientific Atlanta By Cisco, model # DPC2100R2.

So, the local office gives me the "new" modem. I take it home, swap it out with my old one, and get everything up and running. Phone does not work yet, as it takes about 3 business days to port the number over. But, that's not a big deal, and when the switch took place, I had no issues getting everything running.

The new modem I got is a Thomson Internet Voice Modem, Model # DHG536. I don't know if mine is NCS or IMS, from the list you linked to.

However, this is a D2 modem, and the list currently shows that it does not support IPv6.

So, my question then becomes this...obviously on May 18th, Comcast was less then a month (19 days to be exact) away from turning on IPv6. Why would they swap my old modem out for one that apparently does not support IPv6? I know I needed a different modem then the one I had, as that did not support Comcast Digital Voice. But, I would have thought they would have given me a modem that supported both Digital Voice, and IPv6.

Should I go back in there and ask for another modem? If so, which one should I try to get? The local office is not far from me (less then 1 mile), so its not that big of a deal to go over there.

--Brian
--
============================
--Brian Plencner

E-Mail: CoasterBrian72Cancer@gmail.com
Note: Kill Cancer to Reply via e-mail

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 22:22:48 EDT

Mike Wolf posted : You need a D3 modem to recieve an IPv6 address from what it has been said, though there may be a few D2 modems that might support IPv6. Here is the list of approved modems that Comcast says supports IPv6 »mydeviceinfo.comcast.net/?s=i&so···1&sc=626 Keep in mind that this list is constantly growing as Comcast Labs tests devices. :)

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 22:10:52 EDT

m29a posted :

said by boyered:

Make a trip down and ask. Take everything you would need to give back to them.

There isn't a service area near me though, that's the thing. I also can't buy a D3 modem (actually I did buy the SB6121 but I had to return it because I guess it won't work with comcast voice also because I have the comcast voice cord going into the modem and I guess modems with the voice port are rare).

When I called today, the guy said that most of the time a new modem swap is not necessary and I ended up ending the call after trying to explain to him that Comcast recommends a D3 modem and I have this old D2 modem from when I was on Performance.

I found this on the status page from my modem:

RF Parameters

Downstream
Freq/Power: 603.000 MHz -4 dBmV
Signal to Noise Ratio: 36 dB
Modulation: QAM256
Upstream
Freq/Power: 23.750 MHz 45 dBmV
Channel Type: DOCSIS 1.x (TDMA)
Symbol Rate: 2560 kSym/sec
Modulation: QAM16

This is the event log:

Date Time Event ID Event Level Description
***** 20000200 3 No Ranging Response received - T3 time-out
***** 20000300 3 Ranging Request Retries exhausted
***** 20000200 3 No Ranging Response received - T3 time-out
***** 20000300 3 Ranging Request Retries exhausted
***** 20000200 3 No Ranging Response received - T3 time-out
***** 20000300 3 Ranging Request Retries exhausted
***** 18000200 3 UCD invalid or channel unusable
***** 20000200 3 No Ranging Response received - T3 time-out
***** 20000300 3 Ranging Request Retries exhausted
***** 20000200 3 No Ranging Response received - T3 time-out
***** 20000300 3 Ranging Request Retries exhausted
***** 20000200 3 No Ranging Response received - T3 time-out
***** 17000400 3 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period
***** 17000100 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
***** 17000400 3 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period
***** 17000100 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
***** 17000400 3 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period
***** 17000100 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
***** 17000400 3 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period
***** 20000200 3 No Ranging Response received - T3 time-out

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 20:58:31 EDT

SysOp posted : My Motorola SURFboard SB5101U DOCSIS 2.0 Cable Modem supports IPv6.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 20:51:06 EDT

plencnerb posted :

said by SysOp:

But if you already have a D2 and are not above Blast!, D3 seems unnecessary.

I do agree with your statement. However, do you need a D3 modem in order to properly get the config files for IPV6?

While I don't need a D3 modem for my current speed package (Performance), I want to make sure that the modem I have won't have any issues with IPV6 when it is rolled out in my area.

--Brian
--
============================
--Brian Plencner

E-Mail: CoasterBrian72Cancer@gmail.com
Note: Kill Cancer to Reply via e-mail

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 20:32:01 EDT

SysOp posted : Thank you for posting this.

I had the same question and wanted to know the speedtest before and after done with a D2 vs D3 on the same computer, on the same node.

The million dollar question is did it cut your latency in half? If not, your webpages load exactly the same. Large file transfers only get PowerBoost for the first 20mb? So a 20% faster PowerBoost?

So you should buy the D3 if you plan to buy one. Simple as that.

But if you already have a D2 and are not above Blast!, D3 seems unnecessary.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 19:24:49 EDT

boyered posted : When I had gotten blast service (25/4) in November they had given me a D2 modem. Around February I packed up my modem, went to the local office, and ask for a D3 modem. I was told it wasn't required and wouldn't see any speed difference, they didn't want to do it. All I did is say that I wanted the D3 modem for channel bonding and a more stable connection, few minutes later I was out the door with a D3 modem.

Make a trip down and ask. Take everything you would need to give back to them.

EDIT: Getting the D3 modem did increase the speed I would get with powerboost. 30/5 with the D2 and 36/6 with D3.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 18:31:09 EDT

m29a posted : Yes.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 18:30:40 EDT

EG posted :

said by m29a:

I just power cycled the modem I believe and let it re-sync

Did you reset it with the button as instructed ?

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 18:16:14 EDT

m29a posted : Well my speeds when I was on performance usually fluctuated around 20/2. Now 9 months into having Blast! with the TM502G, my speeds fluctuate between that number and sometimes goes up to above 25/3.

I just power cycled the modem I believe and let it re-sync and I used the Shaper detection module and this is what I got:

DiffProbe release. January 2012. Build 1008.
Shaper Detection Module.

Connected to server 64.9.225.179.

Estimating capacity:
Upstream: 1124 Kbps.
Downstream: 33302 Kbps.

The measurement will take upto 3.0 minutes. Please wait.

Checking for traffic shapers:

Upstream: No shaper detected.
Median received rate: 1120 Kbps.

Downstream: Measurement aborted due to high packet loss rate.

I don't even know what config I'm getting because I've looked at the event log and I don't really see anything on it that includes a config.

I just want to know if everything is where it should be, and if I should worry about still having a D2 modem.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 17:50:46 EDT

EG posted : Have you tried resetting the Arris using the recessed reset button on the rear. Depress and hold it in until you see the front panel indicator lights begin to cycle, then release it. Now give it the time that it needs to re-sync with the system. This may help to pull the new config file if it is already queued / present on the local system CMTS.

FWIW, technically it is not absolutely necessary to have a D3 capable modem for the Blast speedtier, but they themselves do recommend it.

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 17:48:31 EDT

PeteC2 posted : As long as you are in a Docsis 3.0 area, then absolutely, they need to swap you a Docsis 3.0 modem.

Now that you have contacted ComcastSteve he should get this straightened out.
--
Deeds, not words

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 17:45:53 EDT

m29a posted : I have contacted ComcastSteve to possibly help me. But I can't help but wonder what's going on and what I need to do when I read threads like this that fit my situation perfectly:
»forums.comcast.com/t5/Connectivi···/1307983

Re: Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 17:35:50 EDT

KevTech posted : If your speeds have not changed then maybe your modem is not receiving the correct config file.

Should we have a Docsis 3.0 capable modem?

Sun, 10 Jun 2012 16:55:07 EDT

m29a posted : In september we upgraded from Performance speed tier to Blast! and we still have the old modem which is the Arris TM502G. I have read threads on the forums that have said that if you are on the Blast tier or above, you should have a DOCSIS 3.0 capable modem. Well today we tried to call and the guy said we go to speedtest and test our connection. The problem is, since we upgraded from Performance to Blast the speed has been the same ever since. And also I would think we should have a Docsis 3.0 capable modem considering we are no longer on the Performance speed internet tier. I thought that maybe it's because we are still using the same modem ever since. Can anyone give some information on this?