NT4.0 Server Kicks out users from network!
Posted on 2004-10-27
We seem to be experiencing a real nasty problem with one of our customers NT4 servers.
The site has 2 NT4 servers, one a PDC and the other a BDC. The email system is kept on the PDC and the
data is all kept on the BDC. The workstations are a mix of windows 98, XP and 2k.
The network is CAT5 Throughout 10/100 standard except for a gigabit link between the two servers which
are situated in different buildings from each other.
What happens is, at random intervals, the BDC decides to just throw everyone off the network. Anyone in any network docs or apps which are situated on the BDC are thrown out. Any mapped network drivers to the BDC become unavailable.
Double clicking on the BDC in network neighborhood from a workstation during this time gives the message "the server is not accepting this type of request at this time, please try later"
However, the plot thickens. The BDC is still pingable! and also we can still VNC into the server desktop, so the IP layer of the network on it still works ok. It just seems to kick the users out, its like the browser service just decides to stop working or something!
The only way we are resolving this issue is by rebooting the BDC. However, on reboot the server always hangs at the windows NT4 server splash screen. It then needs to be rebooted again before it all works again.
NT Event logs show no anomalies whatsoever!
Mostly happens through the night, sometimes in the afternoon though.
Set up replication service between BDC and PDC to run one night, BDC crashed out that night and needed rebooting in the morning (could be co-incidence, could be linked)
Windows NT4.0 Server with SP6a
Intel pentium DUAL XEON 2.8
3x 36GB SCSI Raid 5 array HOT SWAP
Intel on board Gigabit Lan card
HP 20/40 Tape drive using veritas 8.6 running nightly backup
This is an urgent problem, hence the 500 pints. I mean points :)