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NT: Erratic Domain authentication

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by pc_tek

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Our WAN users have just started having this problem and I am unsure how to address it.

WAN Users OP systems are a mix of Win9x, XP, and 2000 clients. They log into our PDC (Win NT 4.0)using MS Client. Sometimes they are able to log in without any problems, more often than not they now have to enter their password, wait until they receive the "NO DOMAIN SERVER AVAILABLE" error, press cancel, and then OK in order to gain access to the domain!!!!

Any help or direction would be greatly appriciated.

5 replies

by jklein

Can you give an idea of how your WAN is connected? Routers used, WAN protocol(Frame Relay, etc...), as well as, speed of the WAN?

by ctmoore1998

Check your Network Hardware. If all cabling is good, then try manual setting the NIC's speed in network adapter properties. Network Neighborhood for 95,98,NT and Network Places for 2K XP (right mouse on appropiate icon) Start with a Fixed 100 half and if that doesn't solve then try 10 half if it works at 10 half then have cabling retested. Since they are just the Wan users, check the 2000/XP event logs for w32 Time errors and or Certificate enrollment errors. MS tech www.microsoft.com/technet has the procedures for correcting those errors in a NT domain. Another thing that adds to NW traffic is the PNP of XP you can go to www.grc.com and download a nifty util that disables XP's PNP service. ALSO make sure that all WAN users are Virus free. Use NAI's Stinger to check for the most recent viruses even if your AV DATS are up to date. OR download the individual virus tools from symantec.

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