Comcast cable users

***Corey*** · 08-07-2004, 11:20 AM

In my area they have been doing upgrades to a new system called QAM256.
Before that it was QAM64.

With this upgrade, it has made my Toshiba PCX1100U modem to cut in and out.

Sometimes when I click on a link nothing will happen, and I can watch the #1 on my Netgear router just sit there, and then it will start blinking as the data streams in.

This just stated to happen last week.
Sometimes I can not even get a lock.
This is a known issue with my modem and others on the Comcast system.

What are you running for a modem for those of you on Comcast?
I wanted to upgrade to a Motorola Surfboard 5100, but I guess even those are having upload issues.
A guy on DSL Reports forum told me to lease one from Comcast like his which is the Motorola 5120.

From what I have read over there, you can not buy the 5120 model, only the 5100 in stores, but Comcast can lease you the 5120 one which does not have the upload issue.

Anyone running this one?
I hate to have to pay $3 extra per month if I go with leasing one, but it looks like Comcast may not be planning on making their system cooperate with my Toshiba one.

This ad is not displayed to registered members.
Register your free account today and become a member on Yotatech!

BT17R · 08-07-2004, 11:27 AM

Corey, sorry about your issues. I don't have a Motorola, although I requested one when my last RCA quit, the third one to go down in two years. They brought along another RCA, this time a model DCM245 that looks like the other two but has better mechanical connectors, the weak link in the others.

I guess leasing paid off with the RCA's anyway. So far I've spent ~$75 in lease fees but have had three replaced by a no-charge in home Comcast tech who showed up on time and even gave me a spare modem to computer cable.

***Corey*** · 08-07-2004, 11:38 AM

Thanks Bob.
Even though they are closed today down here, I am going to take a drive there and see if I can get in.

If not, I need to get out anyways and hit the Starbucks at Safeway to get my mocha Frapachino ala Vente size

superjoe83 · 08-07-2004, 08:29 PM

i have a Motorola, but i think that it is an older one, the model number is SB4220

RED 85 · 08-07-2004, 09:14 PM

Corey,

I use to install modems for At&t before it changed to comcast and my neighbor actually works for comcast in the dept who tests and fixes problems all over I will ask him? I have a 3 COM which we called the shark fin because that is what it looks like. The model # is quite long but I have know trouble with it, the motorola 5100 is a good one there is also a 5200 out there that is even better. The RCA dcm245 is also good and real reliable. those you should have no problems with but it is worth the $3 a month for the rental, cause Comcast is making some bigg changes in the future like 10meg download and 8 up(?) with that you'll probalby need a different one any way.
I will ask my neigbor and see what he says.
Brandi

***Corey*** · 08-07-2004, 09:41 PM

Brandi, here are a few posts, and the shark fin model some markets are seeing a problem with them.

This post below shows the trouble with my Toshiba.
http://www.dslreports.com/forum/rema...6758~mode=flat

http://www.dslreports.com/forum/rema...9778~mode=flat

Shark fin one.
http://www.dslreports.com/forum/rema...2755~mode=flat

Looking forward to your neighbors advice.

According to one of the posts above, Navy Dude says to stay away from the SB5100, and to rent the 5120 which is a Comcast only item.

98 Joes · 08-08-2004, 08:46 AM

I've been using the 5100 for about a year now and haven't had any trouble with it. As for leasing a modem that is proprietary to Comcast, I'd shy away from that. I did that when I had DSL and I did have some compatibility issues with it. One was the firmware would never update. Qwest/MSN couldn't figure it out. I even tried a different modem and it wouldn't work. So now I try to stick with industry standard parts. Only my experience though.

RED 85 · 08-08-2004, 02:12 PM

corey
talked to my buddy he said best to rent with changes coming. to much tech stuff for me to repeat.
brandi

***Corey*** · 08-08-2004, 02:24 PM

Sounds good Brandi.
I will go for the 5120 later.

Doug, it seems the 5100 will have problems though when Puyallup upgrades to the QAM256 according to the DSL Reports threads I have been following.

It screws with the upload, but the download is not effected.

amusement · 08-08-2004, 06:25 PM

Wow!

I checked my ol'Linksys and discovered the HTTP1.1 interface is disabled. Think I will look at a RCA315.

98 Joes · 08-09-2004, 12:48 PM

Quote:

Originally Posted by Corey

Sounds good Brandi.
I will go for the 5120 later.

Doug, it seems the 5100 will have problems though when Puyallup upgrades to the QAM256 according to the DSL Reports threads I have been following.

It screws with the upload, but the download is not effected.

Good info to know. I will definitely upgrade to something else. I don't know a whole lot about this sort of stuff, but the system needs to be reliable for work stuff. I'm going to check out the DSL report though.

Thanks.

***Corey*** · 08-09-2004, 03:16 PM

Doug, here is my original post, and from it if you scroll down you will see the QAM64 & QAM256 stuff from a link that wadewood had.
http://www.dslreports.com/forum/rema...2946~mode=flat

http://www.dslreports.com/forum/rema...2755~mode=flat

98 Joes · 08-09-2004, 05:25 PM

Thanks. I understand the problem a little better now.

08-07-2004, 11:27 AM	#2 (permalink)
BT17R Contributing Member Join Date: Oct 2002 Location: Da Gorge, Oregon Posts: 5,673	Corey, sorry about your issues. I don't have a Motorola, although I requested one when my last RCA quit, the third one to go down in two years. They brought along another RCA, this time a model DCM245 that looks like the other two but has better mechanical connectors, the weak link in the others. I guess leasing paid off with the RCA's anyway. So far I've spent ~$75 in lease fees but have had three replaced by a no-charge in home Comcast tech who showed up on time and even gave me a spare modem to computer cable. __________________ '07 FJ Cruiser TRD SE 6M/T

08-07-2004, 08:29 PM	#4 (permalink)
superjoe83 Contributing Member Join Date: Feb 2004 Location: Oregon City, Oregon Posts: 1,870	i have a Motorola, but i think that it is an older one, the model number is SB4220 __________________ - Joe 1984 SR5 4runner, 22re, 5-speed, chevy 63"s, rears up front custom pack, BBCS shocks, 2" BL, 5.29's, welded rear, Detroit in front, Longfields, IFS Rear, 39.5x13.50x15 IROK's, Marlin's High Steer, MC07 with stock cases, Marlin's cross member, tube bumper, Warn XD9000, Allied Beadlocks 1999 Taco 2.7 5-speed, LCE Header, Jardine 2.25 Cat-Back, 3" Downey Coilover, 33x13.5 Toyo MT's, ARB Bull Bar, Retrofitted Acura TL HID Projectors with 50W ballasts and 50W DL50 Philips 3900k bulbs

08-07-2004, 09:14 PM	#5 (permalink)
RED 85 Contributing Member Join Date: Apr 2004 Location: Parker, CO Posts: 958	Corey, I use to install modems for At&t before it changed to comcast and my neighbor actually works for comcast in the dept who tests and fixes problems all over I will ask him? I have a 3 COM which we called the shark fin because that is what it looks like. The model # is quite long but I have know trouble with it, the motorola 5100 is a good one there is also a 5200 out there that is even better. The RCA dcm245 is also good and real reliable. those you should have no problems with but it is worth the $3 a month for the rental, cause Comcast is making some bigg changes in the future like 10meg download and 8 up(?) with that you'll probalby need a different one any way. I will ask my neigbor and see what he says. Brandi __________________ Brandi You heard of the boy named Sue, Well I'm a man named Brandi! '85 extra cab pick-up, Up on blocks waiting for time and money. '85 4-runner with 3" lift, 33's, 4.88's, rear ARB (still trying to get air to it), Downey intake with K&N filter, some type of header, Camo Int.

08-08-2004, 08:46 AM	#7 (permalink)
98 Joes Contributing Member Join Date: Apr 2004 Location: Puyallup, WA. Posts: 160	I've been using the 5100 for about a year now and haven't had any trouble with it. As for leasing a modem that is proprietary to Comcast, I'd shy away from that. I did that when I had DSL and I did have some compatibility issues with it. One was the firmware would never update. Qwest/MSN couldn't figure it out. I even tried a different modem and it wouldn't work. So now I try to stick with industry standard parts. Only my experience though. __________________ Doug '94 4Runner SR5 '98 Honda CBR600F3 SJR

08-08-2004, 02:12 PM	#8 (permalink)
RED 85 Contributing Member Join Date: Apr 2004 Location: Parker, CO Posts: 958	corey talked to my buddy he said best to rent with changes coming. to much tech stuff for me to repeat. brandi __________________ Brandi You heard of the boy named Sue, Well I'm a man named Brandi! '85 extra cab pick-up, Up on blocks waiting for time and money. '85 4-runner with 3" lift, 33's, 4.88's, rear ARB (still trying to get air to it), Downey intake with K&N filter, some type of header, Camo Int.

08-07-2004, 11:38 AM	#3 (permalink)
*Corey* Co-Founder/Administrator Staff Join Date: May 2002 Location: Auburn, Washington Posts: 26,070	Thanks Bob. Even though they are closed today down here, I am going to take a drive there and see if I can get in. If not, I need to get out anyways and hit the Starbucks at Safeway to get my mocha Frapachino ala Vente size

08-07-2004, 09:41 PM	#6 (permalink)
*Corey* Co-Founder/Administrator Staff Join Date: May 2002 Location: Auburn, Washington Posts: 26,070	Brandi, here are a few posts, and the shark fin model some markets are seeing a problem with them. This post below shows the trouble with my Toshiba. http://www.dslreports.com/forum/rema...6758~mode=flat http://www.dslreports.com/forum/rema...9778~mode=flat Shark fin one. http://www.dslreports.com/forum/rema...2755~mode=flat Looking forward to your neighbors advice. According to one of the posts above, Navy Dude says to stay away from the SB5100, and to rent the 5120 which is a Comcast only item.

08-08-2004, 02:24 PM	#9 (permalink)
*Corey* Co-Founder/Administrator Staff Join Date: May 2002 Location: Auburn, Washington Posts: 26,070	Sounds good Brandi. I will go for the 5120 later. Doug, it seems the 5100 will have problems though when Puyallup upgrades to the QAM256 according to the DSL Reports threads I have been following. It screws with the upload, but the download is not effected.

08-08-2004, 06:25 PM	#10 (permalink)
amusement Contributing Member Join Date: Nov 2003 Location: Portland, Oregon Posts: 1,509	Wow! I checked my ol'Linksys and discovered the HTTP1.1 interface is disabled. Think I will look at a RCA315.

08-09-2004, 03:16 PM	#12 (permalink)
*Corey* Co-Founder/Administrator Staff Join Date: May 2002 Location: Auburn, Washington Posts: 26,070	Doug, here is my original post, and from it if you scroll down you will see the QAM64 & QAM256 stuff from a link that wadewood had. http://www.dslreports.com/forum/rema...2946~mode=flat http://www.dslreports.com/forum/rema...2755~mode=flat

08-09-2004, 05:25 PM	#13 (permalink)
98 Joes Contributing Member Join Date: Apr 2004 Location: Puyallup, WA. Posts: 160	Thanks. I understand the problem a little better now. __________________ Doug '94 4Runner SR5 '98 Honda CBR600F3 SJR

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What is best cable modem for Comcast?	Yoda	Computer Talk	20	06-11-2007 05:13 PM
Western WA. Comcast users, reboot that cable modem	Corey	Computer Talk	19	03-26-2005 03:21 PM
ATT. Comcast HSI users	Corey	Computer Talk	12	01-11-2005 09:47 PM
Comcast users	Corey	Computer Talk	7	11-20-2004 08:09 AM
Comcast, biggest spammer on the 'Net (Its users)	Corey	Off Topic Talk	0	05-24-2004 03:35 PM