I have a desktop PC on Win XP that for the last month has had a Limited or No Connectivity issue. I tried to repair as well as ipconfig /release and /renew, but the /renew reported that it was unable to contact the DHCP Server. I am typing this on a laptop (win7) that connects just fine, and my other devices (iphone, itouch) connect as well.
I followed all the steps in this article:
which includes resetting the TCP/IP, NIC, etc etc, all to no avail.
Tomorrow I'll try bringing the desktop to hard-wire to my router (Cisco ATT Uverse Gateway with built in wireless) to see if I can connect to the internet that way.
I thought my USB wireless adapter might be bad, but if I set a static IP, I can connect to the residential gateway's IP and change the router's settings, but cannot connect to the internet, I assume due to the DHCP issue.
I appreciate any assistance or other things I can try.