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Comcast Router Hate

I own an Xbox, a PC, a broadband connection, and a Linksys router. One of these things no longer plays well with the others.

I'm not sure when it happened, exactly. But the last few days I've been unable to get online with both the PC and the Xbox simultaneously. I seem to remember hearing that Comcast has a new policy to disallow more than one device on home networks (presumably by looking at the device's NIC addresses or something). Every time I call for support they tell me to ditch the router (and then it works fine).

So, I want to blame the router. Anyone else have similar issues with Comcast or Linksys? Maybe it's time to ditch it all and set up wireless. Or ditch Comcast entirely and just borrow a cup of wireless bandwidth from the neighbors.

Comments

( 9 sutras — Your wisdom )
mearls
Dec. 17th, 2004 05:25 am (UTC)
Are you using DHCP with the router?
the_monkey_king
Dec. 17th, 2004 05:44 am (UTC)
The cable modem is set up to autodetect the relevant IP address, which I assume means it uses DHCP.

As for the router... The router configuration stuff is arcane enough that I'm not sure what tool I should use to access it.
mearls
Dec. 17th, 2004 05:49 am (UTC)
Chances are it has a web interface that you can use to configure it. DHCP (Dynamic Host Configuration Protocol) allows you to use one real IP address to put multiple machines on the network.

It sounds like the cable modem is hardwired to hand out only one IP address. If you use DHCP, you can have it hand that one address to the router, which then hands out IP addresses to the machines on the network. My networking fu is really, really rusty (it's been 4 years...), but that should work. We use a similar set up on the network in my apartment, and we have 5 or 6 machines (two laptops, desktop, two XBoxes) running on it without any problems.

Any ISP that tries to charge you per machine on the network (rather than bandwidth) is ripping you off.
the_monkey_king
Dec. 17th, 2004 06:59 am (UTC)
How do I find this web interface for the router? Eh, I'll dig around the Linksys site a bit, see what I find.

The weird thing is, the system used to work without a hitch.
mimerki
Dec. 17th, 2004 05:32 am (UTC)
Does it kick one or the other off consistently? Or does your whole connection die?

Comcast's website has friendly instructions for a home network, which implies they aren't doing this on purpose.
the_monkey_king
Dec. 17th, 2004 05:38 am (UTC)
It just kicks off one or the other.
mysticalforest
Dec. 17th, 2004 07:23 am (UTC)
It ain't Comcast, at least I wouldn't think so. We have Comcast and have multiple devices online at once (TiVos, Macs, Xbox, &c.).

It all works World of the Future style: nearly seamlessly. We don't have a Linksys routher though.
(Deleted comment)
nellisir
Dec. 24th, 2004 03:48 am (UTC)
I dunno if you got this settled, but I had a linksys router that abruptly went bad. Some days I could get online, somedays I couldn't. Then it decided to only let the desktop computer on. I replaced it and everything was hunky-dory, at least until the cable modem went.

Two computers, btw. No X-Box.
( 9 sutras — Your wisdom )

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