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View Full Version : Comcast Modem Help, Please.



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Pork Chop
01-27-2012, 09:04 AM
Here's some detail to hopefully clarify what I would like to ask...

For the past 8 years I have had a leased Motorola Surfboard SB4200 Cable Modem. My neighborhood was wired in 1999, and I am told we have the last/greatest connection, such as DocSys 3.0, Cable TV digital conversion complete, etc. (I do not have Comcast for TV, btw). About 3 years into having this setup, I lost my internet connection and called Comcast. The tech did his thing with whatever they do to see where the trouble was. He thought it was my router, and was going to have it swapped out. It turns out my router was fine, and there was an outage in my neighborhood. During the conversation, he mentioned that the modem had a 3-4 life expentancy, but no need to swap it out as long as it was working fine. Fast-forward to 2012... I still have the original router, and it seems to be working fine. But...

I have called Comcast on occassion, inquiring about whether or not I need to upgrade my modem. They have always responded that my router is up to date via firmware updates, and that with my service plan, a router upgrade would not make a difference. I have Teleworker- 6Mbps down/512Kbps up (Comcast claims that I ACTUALLY get double that.) The latest speedtest I ran gives 18.67Mbps down/ 2.07 up), (pretty nice, huh?).

Now that I've bored you to sleep with the stupid details, my question - Is Comcast correct in telling me a new router would not improve my connection, or is it worth upgrading the modem to the latest/greatest? The most demanding tasks IMO are streaming Netflix, HD via wireless, and A LOT of Live Meeting and downloading of apps for work.

If you are still awake, any input/opinion on the modem choice is much appreciated. Thanks!

yaz96
01-27-2012, 10:49 AM
Well, you are obviously getting more speed than you are paying for, so the modem seems fine.

BUT, you could save yourself a bunch of money by purchasing your own modem, and not paying them every month. (8 years worth of rental fees...yikes!)

Here are a couple options for the latest and greatest DOCSIS 3.0 modems for Comcast -

http://www.amazon.com/Motorola-SB6120-SURFboard-eXtreme-Broadband/dp/B001UI2FPE/ref=sr_1_1?s=electronics&ie=UTF8&qid=1327682771&sr=1-1

Amazon.com: Motorola SB6121 SURFboard DOCSIS 3.0 Cable Modem: Electronics (http://www.amazon.com/Motorola-SB6121-SURFboard-DOCSIS-Cable/dp/B004XC6GJ0/ref=dp_ob_title_ce)

or wireless -

Amazon.com: Motorola SURFboard Gateway SBG6580 DOCSIS 3.0 Wireless Cable Modem: Electronics (http://www.amazon.com/Motorola-SURFboard-Gateway-SBG6580-Wireless/dp/B0040IUI46/ref=sr_1_5?s=electronics&ie=UTF8&qid=1327682771&sr=1-5)

Buy one and save yourself some dough.

berck
01-27-2012, 11:24 AM
I'm with yaz. I just purchased the SB6121 and its working great. I have similar speed issues. They say I get 16Mbps, and I see it regularly boost into 20-25Mbps range. Although they charge a $7 lease fee, I've been told they only drop $5 off the fee. Something about a $2 discount for the lease of the modem. I'll see soon.

yaz96
01-27-2012, 11:33 AM
I'm with yaz. I just purchased the SB6121 and its working great. I have similar speed issues. They say I get 16Mbps, and I see it regularly boost into 20-25Mbps range. Although they charge a $7 lease fee, I've been told they only drop $5 off the fee. Something about a $2 discount for the lease of the modem. I'll see soon.

I get the entire $7.00 off.

mcintire123
01-27-2012, 12:13 PM
Is getting a higher speed than advertised really and "issue"? I get higher speeds than advertised to, seems like the first thing Comcast has done right.

Pork Chop
01-27-2012, 01:22 PM
Thanks for the feedback. Leasing vs. owning is not an issue for me. All charges are paid by the company I work for. In fact, over the past 8 years, the monthly rate has dropped (now <$50/mo w/ no extra lease fee) and the down/up speed has increased. Originally, I think the monthly fee plus lease was close to $70/mo.

Is my modem or my current service plan the weaker link in this setup? I don't want to ask Comcast to swap out the modem, or buy my own modem if the net result would be the same speed and performance I am getting now.

yaz96
01-27-2012, 01:36 PM
Thanks for the feedback. Leasing vs. owning is not an issue for me. All charges are paid by the company I work for. In fact, over the past 8 years, the monthly rate has dropped (now <$50/mo w/ no extra lease fee) and the down/up speed has increased. Originally, I think the monthly fee plus lease was close to $70/mo.

Is my modem or my current service plan the weaker link in this setup? I don't want to ask Comcast to swap out the modem, or buy my own modem if the net result would be the same speed and performance I am getting now.

What are you looking for? I don't understand.

mcintire123
01-27-2012, 03:09 PM
I suspect your connection problem is your router. I had alot of problems like that with Linksys routers after they turned a year or two old, really seem like junk anymore so I quit buying them. Got a netgear and it lasted just fine two years but now Comcast gave me an Arris TG852 gateway that has built-in wifi so retired my router.

IMHO your router is probably cutting out the connection not your gateway.

On the perfomance side I would be happy with what your getting especially if your getting double your advertised speeds. When it comes to your gateway being a DOCSIS 2.0 that is fine when your not running it at high speeds. DOCSIS 3.0 only matters when you start pushing over 39MB/s (I think, may be wrong).

Im with Yaz on this, I don't see where your seeing a problem with performance, like I said if you are getting double your advertised speeds then , uh , what's the problem with that?

Pork Chop
01-27-2012, 06:34 PM
No service issues or complaints, just wondering whether a new modem would be a waste of money.

harshness
01-27-2012, 06:50 PM
You would probably be wasting your company's money changing out your router. You could ultimately save them money by purchasing, but they may benefit more from leasing.

I've heard rumors (but cannot substantiate) that the DOCSIS3 modems don't get as much improvement from SpeedBoost.

Reigster at SatelliteGuys