Stan,
I have been following your thread since the beginning. Sorry not to jump in
until now.
It sound to me that you may have a simple DHCP problem on your LAN. Since
you chose to plug your game box in post 30 minutes AND it connected, I
believe that your router is working.
Now, You need to go to each other machine and reset their OLD (previous)
DHCP lease. I suspect they are hammering your router w/old leases.
On the machines that you can use a cmd prompt, open the cmd window.
type:
ipconfig /release<enter>
This should release (remove) the old lease..............
Then type:
ipconfig /renew<enter>
Your router's DHCP server should issue NEW lease for this machine AND it
should now connect.
On machines you can not use the cmd prompt with (a console?), I think you
just need to power them off for another 30 minutes and then plug them back
in to force a cold reboot. This should force a fresh issue of NEW lease
with your DHCP server (router)................. :)
{this is one of the big reasons I do not allow DHCP servers on my LAN; I
assign IP addys to my LAN clients manually. I am still very old-school
about this.}
Lastly, Bino brought up the term "Masquerade." I call is "spoofing." I
do spoof my primary machine's MAC Address at my router (DLink DL-4300). As
far as I have been educated by the collective, my ISP should be seeing the
MAC Addy of my primary machine FROM my router. I can not test this because
I do not have any hardware that is NOT behind my router. I believer the
term for this is putting a PC in the "DMZ" (for Outside NAT control of the
router).
Additionally, I do have a MAC Address Filter in my router. To this, I have
entered the MAC Addresses of all of my LAN clients. Without this, a client
can never get to the WWW thru the router. A wonderful way to control who
can and can not get out to the web! Werkz4Me...... :)
HTH,
Duncan
At 10:23 01/26/2009 -0600, you wrote:
I unplugged my modem for 1/2 hour or so and plugged it back into my game
box and it connected but then would not connect to the others. This leads
me to believe that my router has gone bad. Thanks for the help folks.
Bino Gopal wrote:
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]
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