Servers get unresponsive

[Uso S.]

Hi all,   I just joined the list. I have a problem regarding NT 4.0 My environment is 10/100 Switched network on CISCO switches. For some reason I keep loosing network connectivity to servers. A PING works fine but not a NET VIEW (System error 53 has occurred. The network path was not found.) If you try to use any remote tools like Eventviewer etc. it gives you RPC Server unavailable. This keeps coming and going on all servers, and I can't pin point what might be causing it. We have VLANs configured but it doesn't seem to be related to it. The symptomps are the same and don't depend on which VLAN you are on. The Event logs don't show any errors. Using Host or LMHost files didn't help either.   Any ideas?   regards   Uso     http://www.sunbelt-software.com/ntsysadmin_list_charter.htm