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xfinity wireless gateway modem - Specs

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Message 1 of 17
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Does anyone have the specs on this modem? Does it offer 5 ghz and 802.11n?

 

I still have the Motorola Surfboard SB5101 and wondering if its worth upgrading. I do have a good Router from NetGear already.

16 REPLIES
Posted by
Silver Problem Solver

Message 2 of 17
25,400 Views

If you already have a good router, just go for a straight Docsis 3 modem with 8 downstream and 4 upstream channels. Don't mess with gateways they tend to have a bad rep, what with bad range and crippled firmware from Comcast.

 

You don't mention which gateway you are looking at. Most that I have seen do have wirelless "N", but don't use 5ghz.

 

http://mynewmodem.comcast.net/

 

(the motorola 6580 is apparently dual band)

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Message 3 of 17
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Thanks....can I go to Comcast and pick one of these up?

 

Also, is there any reason to get rid of Motorola Surfboard SB5101?

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Message 4 of 17
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FYI; my current Router is a NetGear WNDR3400. Do I need to upgrade this to take advantage of DOCSIS 3.0 (if any)?

 

Todd

Posted by
Problem Solver

Message 5 of 17
25,374 Views

no, your router is fine

Posted by
Connection Expert

Message 6 of 17
25,366 Views

thendreks wrote:

FYI; my current Router is a NetGear WNDR3400. Do I need to upgrade this to take advantage of DOCSIS 3.0 (if any)?

 


As implied in a reply here to your other post, the 5101 is not even DOCSIS 3 capable;

 

http://forums.comcast.com/t5/Home-Networking-Router-WiFi/Internet-speed-fine-in-the-room-with-the-ro...




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Posted by
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Message 7 of 17
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Thanks, had not seen the post yet.

 

I was trying to get info on the standard Xfinity Gateway all in one router/modem. So this is where I am at:

 

1. NetGear WNDR3400 is a fine Router and so I should keep

2. My 5101 is outdated and I should replace.

3. I can get the xfinity Gateway all in one router/modem and make it a "bridge" but...

4. I might be better off buying a modem from this site instead that is DOCSIS 3.0 from this list:

http://mynewmodem.comcast.net/

 

That about right?

 

I've noticed internet performance for streaming video / mulitple devices is spotty lately, even with me buying the speed boost option. So I thought it was hardware related...would have been nice for Comcast to tell me about new standard.

 

Todd

Posted by
Silver Problem Solver

Message 8 of 17
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thendreks wrote:

Thanks....can I go to Comcast and pick one of these up?

 

Also, is there any reason to get rid of Motorola Surfboard SB5101?


Well if renting you could go to your local Comcast and see what they have in stock. To buy your own, get one from a reputable electronic store. Don't buy from Ebay, or second hand.

 

As EG say's your modem is a D2.

Posted by
Connection Expert

Message 9 of 17
25,353 Views

That's about right. I would get the highly recommended Zoom 5341J for the modem.




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Posted by
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Message 10 of 17
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This will sound stupid but I don't have to use a Comcast cable modem right? Just buy a third party one, connect the cable and voila I am off?

 

I'll look at the zoom; thx.

 

Todd

Posted by
Silver Problem Solver

Message 11 of 17
25,336 Views

Yeah, you can buy them anywhere, the Zoom 5431J is here:

 

http://mynewmodem.comcast.net/

 

Best price of the bunch and does have 8x4 channels.

Posted by
Problem Solver

Message 12 of 17
25,332 Views

As long as you don't have Comcast Voice service it is easy to use any approved modem.

 

If you have voice, EG says you need to check what telephony modems are allowed in your area and if they allow self install and so on.  You need to pick a telephony modem in that case.  (e.g. the Arris tm822g)
 But you need check he said.

 

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Message 13 of 17
25,323 Views

No voice (I use CenturyLink), so Comcast is only used for Broadband.

 

Thanks everyone, I will buy that Zoom model now.

 

 

Todd

Posted by
Silver Problem Solver

Message 14 of 17
25,320 Views

One final word, when you take the old modem back, make sure you get and keep the receipt in a safe place, they do have a habit of reappearing on the account.

 

Good Luck!

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Message 15 of 17
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^ Ha! No doubt.

 

I will ask one more question since you all seem more knowledgable than me on this....any settings / tips you recommend for when I get this Zoom modem and maybe altering my NetGear WNDR3400 router for the best performance?

 

Todd

 

 

Posted by
Silver Problem Solver

Message 16 of 17
25,293 Views

Ah, missed your reply. I'd just say make sure all your network devices have wireless "N" cards or adapters. A rogue wireless "g" card or adapter will slow the network down. The rest is really what works for you...

Posted by
Connection Expert

Message 17 of 17
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