Hi -

I recently installed WiFi by cable in my apartment.  At the same time, I moved my desktop up one floor.  Although our laptops work fine with the wireless, the desktop doesn't.  When I called the cable company, they told me that the IP Protocol number had changed on my computer and I had to call a technician to get it re-set.  can anyone help me?  The desktop says that the signal is "excellent" but it doesn't connect and I have already received a message about the IP Protocol.  I don't really want to pay the $100 to a technician if I can do it myself but I'm not an expert.

Thanks for any ideas, advice...

Alison