DHSinclair wrote:
Stan,
I have been following your thread since the beginning. Sorry not to
jump in until now.
Not a problem man. :-)
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.
Seemed to work because I didn't get any error messages but with my
router between the cable modem and my 4 boxes none of them will connect.
I have to unplug my modem ethernet cable from the router and hook it
direct to my main machine to send this email.
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.}
I love computer hardware but when it comes to networking I choke. Thats
the beauty of a router for me. It's plug-n-play simplicity with DHCP
handling all the esoteric stuff. Back when I used ZoneAlarm I often had
to go into settings and give it specific IP's and Subnet Mask's to get
connections with my other boxes. Needless to say, I don't use ZoneAlarm
anymore.
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).
I use a D-Link DI-604 and the last firmware is dated 2004 and I have
probably been using it since 2006. I've heard of DMZ and NAT but so much
of networking seems confusing to me. I've read and read but this is one
of those areas where the theory and reality clash. I need to go back to
school. <g>
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
Thanks for the help 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]
Please remove **X** to reply...
Facts do not cease to exist just
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