DHCP Server Problem w/ a Twist

Hi everyone,

My family's computer was running really slow last week, but could connect to the internet with no problem. On Saturday, I backed up important stuff and reformatted, reinstalled windows XP, installed SP2, installed all the drivers, and now I'm having the most frustrating problem with the internet connection.

It is a variant of the "Unable to contact your DHCP server" problem. Basically, my wireless card (I have no wired internet, and no way of doing so in its current location) connects to my wireless network (called CMK), and has an excellent connection and all, but my router will not assign an IP address.

Where it gets absolutely infuriating is with these two pieces of information:

1) My other computer, which is also wireless, can connect to my CMK network.
2) The computer I reformatted can connect to the network of the neighbors.

So, it appears that my router is working, but also that my reformatted computer's network card is working. And yet, I cannot connect to my network on the reformatted computer, just someones in the neighborhood.

Any help would be greatly appreciated.

Specs:
Windows XP SP2 (newly installed)
TRENDnet TEW-423PI/A Wireless Card
Hawking HWR54G Wireless Router

 

Have you tried setting the TCP/IP settings manually.

Choose a unique IP address: if your other PC is 192.168.1.100, try using 192.168.1.120.
Use the same mask, gateway and DNS as the other PC.

If the problem is simply that your router isn't giving out an IP address via DHCP, then you computer should work with a static TCP/IP configuration.

 

Can you check your dhcp pool to make sure it's big enough?
You might have some ghosts ip's still lingering.

Also, did you recycle the power on your router?
Our dlink wireless router won't allow any new computers on until we recycle the power.
Thanks,
TT