“Workgroup not accessible” error

I have two Win2k Pro hosts networked together as peers in the same workgroup. Both hosts are fine (ie. can see each other) when accessed through My Network Places/Entire Network/Microsoft Windows Network/Workgroup. However, one host times out whenaccessing My Network Places/Computers Near Me. The error message is “Workgroup not accessible. List of servers for this workgroup is not currently available”. The second host has no problem with this. Any suggestions?