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XP drops connection to w2k workstations

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mikesh2006

Technical User
Mar 8, 2006
9
GB
We started in January 2001 with a 2000 standard server and around 10 Windows NT client PCs. As the years passed the NT clients became 2000 Pro clients, 10 clients grew to 45 and we added a second server, running 2003 standard server. The two domains were split between between our two companies, 35 clients on the 2003 domain and 10 on the 2000 one. Everything worked fine, a trust relationship meant seamless connections to either server, every resource on the network and shared drives on numerous PCs.

Then we introduced a handful of XP Pro workstations and the problems started.

Every so often, maybe every 30 minutes, maybe every 2 days, the XP boxes need to logon again when connecting to the 2000 workstations and the 2000 server on the other domain, not their own 2003 domain server. They also need to use someoneelses' password.

When it drops the XP event viewer reports errors 40960 and 40961, mentioning a "potential downgrade attack." Does XP think it's too important to talk with 2000 boxes?

This has never been a problem with 2000 clients, and I thought I knew all XP's idiosyncracies, but this has me beaten.

I tried the "Power Management, untick Allow the computer turn off this device…….." and this worked for a while, but not for long.

We do NOT have Reverse Lookup on the 2003 server installed but I cannot see how this would affect the internal network. Am I really stupid in thinking this?

I am currently working away from where the network is and won't be able to try installing reverse lookup for a couple of weeks.

Any ideas please?

Thanks,

Mike

 
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