BDunaway

Guys I JUST GOT WIN2K on my new PC and have a question about DUN & games. A friend and I have been using a straight TCP/IP connection to play RPG's for years. But now I can no longer connect to his PC(He using win98) using win98's dial up server. Win2k is insisting that I enter user name and password that was not previusly required. What is the best way for us to aproach this problem. Forgive my ignorance but I love Win2k and wnat to get the best out of it. Thanks