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System Event 3012 at PDC

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by dyork 1 view

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My NT 4.0 100mbs Ethernet single domain network consists of a PDC, a BDC and 30 workstation desktops (about half are Win95, the remaining half are NT 4.0 Workstations).
Periodically, on the PDC Event Viewer, I am getting Event 3012 RDR complaints (An unexpected Network Error has occurred on the virtual circuit to (workstation computer name). There will be one complaint line for EVERY WIN95 computer currently logged on to the network. NO complaints on ANY of the WINNT machines. Typically about half of the Win95 complaints are logged and the remaining half get logged about 10 minutes later.
Any clues as to what is happening here?
Thank You

8 replies

by fgarber

Check out Microsoft's knowledge base articles Q137980 and Q169841. One of those should solve your problem

by dyork

Thanks, but the above Q files deal with Win95 machines setup using User-level security. My Win95 machines do not have shares, and (as a test) I changed the security setup on three of the Win95 machines to USER-LEVEL security - Problem persists.....

by curlergirl

From what I've seen, this appears to be connected with having Windows 95 machines with user-level shared access turned on. I think you should be able to fix it with one of several strategies - if you need user-level shares on the Win95 machines, make sure your NT machines and servers are on SP4 or later; if you don't actually need to share files or folders on the Win95 machines, you could turn file and printer sharing off on these machines; there is supposedly a Win95 fix for this also, which is explained in MS Knowledgebase article Q169841. Hope this helps!

by curlergirl

From what I've seen, this appears to be connected with having Windows 95 machines with user-level shared access turned on. I think you should be able to fix it with one of several strategies - if you need user-level shares on the Win95 machines, make sure your NT machines and servers are on SP4 or later; if you don't actually need to share files or folders on the Win95 machines, you could turn file and printer sharing off on these machines; there is supposedly a Win95 fix for this also, which is explained in MS Knowledgebase article Q169841. Hope this helps!

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