what is the reason that i cannot see 2 win2k computer behind the hub cannot see each other on the My network places but can ping each other?

and what does 'request times out' means while pinging?

Is firewall villain? i have set my LAN on the trusted zone on the firewall. I am irrited really, same problem never ends. I have installed zone alaram on both using internet on both using router behind the hub.And I am not that stupid using Zonealarm, I shut it and tried no luck.

10 out of 9 times I have same problem,this is going on since abt 6 monts,

help 'd much appreceated