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Cannot see server when browsing network, network mappings fail also

Posted on 2011-03-07
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Last Modified: 2012-06-27
Hi all
I have a weird problem. We have a server 2003 AD domain with several local servers.As of a couple of days ago I cannot browse one of the servers on the network and drive mappings to it fail with "the specified network name no longer available". I can RDT to it using its IP but not its DNS name. I have deleted the DNS A record  from the DNS server and run the register DNS command on the affected server which has recreated the A record. It also has a valid reverse lookup record.

What could be causing this? I have not changed the IP or anything.

thanks
Tracy
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Question by:tracyprier
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5 Comments
 
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Expert Comment

by:Korbus
ID: 35064075
I be curious to see what the results of an NSlookup from the command line showed when resolving (or failing) to resolve the problem machine' name.
Do you see any dns or similar errors in the vent logs when this occurs? I'd check both the dns server's logs, and the "lost" machine's logs.
ipconfig /flushdns, on a network machine will make sure the changes (or resets) you do on the dns server go through to the clients machine.

another thought:  problematic switch port.  move the server to a different port on the network switch.
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Author Comment

by:tracyprier
ID: 35064129
Hi Korbus

Which machine should I run the NSlookup on and what commands?

ALso, this is a VMware virtual server on a IBM blade S so the network port thing does not apply in this case.
Tracy
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Expert Comment

by:Korbus
ID: 35065943
I'd run nslookup on amachine that cannot contact the server properly.
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Accepted Solution

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tracyprier earned 0 total points
ID: 35072720
Turns out that what I had done during the day was the fix... and just needed to reboot both the DNS server and the offending server and it is working again :)
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Author Closing Comment

by:tracyprier
ID: 35120682
I tried it and it fixed the problem :)
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