I have a router (DLINK 701) that renewed the ip on all the clients except one. So I ended up disabling DHCP. Oddly enough it was an NT machine that couldn't keep its address. I've got linux, Win98, Win2k, and Win95 clients all on this network and it was my one NT4 box that had to crap out. I guess it goes to show, even if it supports it, that's not to say it'll always work. It SHOULD though.

Good luck to ya!