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chris_ntFlag for United States of America

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server 2003 suddenly invisible on network

Ok I have a critical issue,  I have a windows server 2003 box that will not respond to anything on the network.  It’s a single server, running active directory and exchange.  No particular errors in the logs, it can see everything on the network, it can ping everything.  But nothing can ping it, our barracuda box can’t deliver email to it, no DNS lookups from it.

Tried a new nic card since it has the same problem in safe mode with network support, updated the driver.  It’s definitely something in windows.

Please help, if I don’t get it fixed this evening, I will have to start reloading it.
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coalnine
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have you tried to use nslookup or anything from that server?
might be something as simple as ipconfig /registerdns

Kenny
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Reset the TCP\IP stack.

http://support.microsoft.com/kb/317518

Disable the old NIC use the new NIC
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IntegrityOffice

can it browse to itself, start run \\server? can it ping itself?
Check all the services have started, start run, services.msc I once saw some Java stuff from APC stop a server reponding just liek you describe, but it was about 4 yrs ago.

have you got the firewall acedentally turned back on? have you got a 3rd party firewall installed? have you got a malwhere that is stopping the server responding?


some thoughts.
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ASKER

nslookup runs fine on the server...

Tried to reset tcip stack, didn't help

the server can browse itself.

no 3rd party firewall software.

when i ping the server from another device, i see the packet hit under the network status.  so i know it's getting there, but no reply.

scanned for malware and viruses.
ASKER CERTIFIED SOLUTION
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chris_nt
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Solved my own problem