please help!

i have a wireless network in my house,alls well till yesterday. im unable to connect to the internet on my second computer. i tried repair connection and got the following message WINDOWS COULD NOT FINNISH REPAIRING THE PROBLEM BECAUSE THE FOLLOWING ACTION COULD NOT BE COMPLETED RENEWING IP ADDRESS i then checked network connection page and have no ip address info , subnet mask info, default gateway info, dns server info. where do i find this info so i can re enter it.(i checked the help pages and couldnt make head nor tail of it)
any input would be greatly apprieciated

Check start Run... cmd

Then type ipconfig

Do you see any addresses etc. here?

You might try contacting your ISP support as well. Worth a shot anyway.