I have an XP and a Win98 machine both hooked to a router on roadrunner. If I do an ipconfig /all in DOS, the 98 machine reports its host name as matt.cfl.rr.com, when the host name in windows is set up as just matt. I can see him as matt on the network, ping him with name and IP, and access his shares, but he cannot see me, nor can he ping me by name, but he CAN ping me by IP. I can ping myself by name and IP, he can do the same with his. Sometimes we can both see each other, but without touching any settings one of us will drop off the network, even in the middle of a lan game. The network was running before I switched to XP and he went to 98, I had 98 and he had ME. I suspect the problem is related to DOS reporting a different host name than windows. Does anyone have any suggestions? And yes file and print sharing is enabled, drives are shared out, and I went through the entire xp - 98 network document I found posted here, nothing worked. XP firewall is disabled too.