connecting to a home network problems

[AgentUnknown]

At home, have a wireless router connected to DSL. I have one desktop that is wired and one laptop that runs using a wireless connection. Both connect to the internet fine. I got another desktop and want to connect it to the network. If I plug in a network cable to the router, internet works. I bought a wireless PCI card for the desktop since stringing a network cable is a mess. The card detects the network and connects to it, but the internet does not work. I tried to repair connection and it states having trouble renewing IP. The activity packet shows a bunch of packets sent, but 0 are received. What am I doing wrong?

I run ipconfig and it says:

Connection -specific DNS Suffix:
Autoconfig IP address: ########
Subnet mask: ######
default gateway:

Any help would be appreciated.

 

[AgentUnknown]

I did a ipconfig release then an IPconfig /renew. This is what it said:

An error occurred while renewing interface wireless network connection: unable to contact ur dhcp server. Request has timed out.

Any help?

 

[SpunkyJones]

Check your security and dhcp setting on the router. Also check the type of network supported by the router, and make sure the card can support it. You are not getting an IP from the router, you are probably showing a default 169.254.x.x address when you do a ipconfig on the pc.

 

[xSauronx]

if you have security enabled theres a good chance its a key mismatch...just a typo when you put in your wifi key. try it again very, very carefully or disable security and see if it works.

 

[kevnich2]

Sounds exactly like a bad network key on the computer.

 

[JackMDS]

Maybe this can Help, http://www.ezlan.net/wireless.html

 

[AgentUnknown]

Wow, it was the wrong network key. Unbelievable. I spent 2 friggin hours trying to figure this out. Thank you for the help!