So my internet in the basement goes down last night. I figure it's just a service problem, and it'll be back by the morning. Nope. I called up my ISP to see what the problem is, but of course they had no idea. They directed me to LinkSys, who make my router and ethernet card.

The LinkSys guy tells me the TCP/IP Protocol is all f'd up, and I have to change it. Anybody know how one would go about this? As far as I knew, you couldn't just go out and buy a new TCP/IP Protocol...

Help!