Hmm, interesting. So remember there are two sides, like you said WAN and
LAN.
WAN refers to the side b/w Comcast and you; to you that's the "WAN" side.
You cable modem is the device getting an IP from the headend/CO and then
giving it to whatever device you plug it into, in this case your router. So
on your router's WAN port, it's configured for DHCP so it should just be
able to do DHCP to the cable modem and get it's IP if everything is working
properly.
But it sounds like there's some issue b/c when you try to renew the IP on
the router, it's not getting the proper DHCP response...but if that other PC
is working...hmmm...
So current theory (w/o seeing it/more info): yeah, somehow the cable modem
has the mac of the PC cached and that's why your router is not getting an IP
and only that PC is. As Bryan suggested, unplug everything and leave it
unplugged for 15-30 mins and then plug the cable modem back in and the
router to the cable modem and check the WAN status on the router and see if
it can get a public IP or not...that should be the first troubleshooting
step...
BINO
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Stan Zaske
Sent: Sunday, January 25, 2009 11:35 AM
To: [email protected]
Subject: Re: [H] Comcast blues
Under my router's Device Info, the status tab has a LAN section on top
and a WAN section underneath. The WAN section lists mack address,
connection, IP address, subnet mask, default gateway, and lastly DNS. To
the right of connection it says: "DHCP Client Disconnected" and to the
right of that are two buttons for DHCP release and DHCP renew. I've
tried the release and renew buttons but the renew action goes to a
screen that says "renew IP timeout". I'm pretty sure that this is the
reason none of my boxes will connect through the router to the Internet.
Am I missing something or can anybody add anything? Thanks!
Bryan Seitz wrote:
> Usually you can wait ~15 minutes and it will time out as well with the
cable
> modem powered off/unplugged.
>
> On Sun, Jan 25, 2009 at 09:19:14AM -0800, John R Steinbruner wrote:
>
>> Not sure about there, but here, they keep track of the mac address.
>> When I changed from an old 10 base T router to a brand new G Wireless
>> router at a rental place once, I had to change the Mac address of the
>> new router to match that of the old one before anything would work..
>>
>>
>> On Jan 24, 2009, at 6:50 PM, Stan Zaske wrote:
>>
>>
>>> Have any of you ever run into a situation where your router's WAN port
>>> seems to stop working but your ethernet connections among 4 PC's are
>>> fine? Then after some more investigation it seems that your cable modem
>>> will only connect one PC to the web and none of the others? The only
>>> thing I can figure is that my router is fine but Comcast has locked
>>> (possibly) my service to the MAC address of this one box and will only
>>> connect to it but none of the others. Is my thinking straight on this
>>> or can any of you come up with an alternate scenario? It seems might
>>> strange to me that I can take the ethernet cable from my Mororola cable
>>> modem and switch it from one box to another and only the one will
>>> connect. What the heck is going on?
>>>
>>>
>>>
>> --
>> JRS steinie**[email protected]
>> Please remove **X** to reply...
>>
>> Facts do not cease to exist just
>> because they are ignored.
>>
>
>
