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Windows 2003 Server Shares losing connectivity

My main file server (Windows 2003 running on VmWare 4)) has started to intermittently block share access to all users until rebooted.  

Users one minute can connect to a share, then the next it is unavailable.  This is especially the case with .pst files in Outook.  

I have done full virus and spyware scans, checked for rougue processes, checked file space, checked event logs, yet still cannot find any reason as to why it is doing this.  

Recently I upgraded my VmWare to 4- cant think of anything else that has changed.  Please advise.
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jzacher
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jzacher
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1 Solution
 
Maniac_47Commented:
Is it actively blocking shares or is the network card going offline / losing its connection?  The upgrade of vm hardware may have something to do with that.  

Please let me know which scenario is happening so we can troubleshoot further.
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jzacherAuthor Commented:
Seems to be actively blocking shares?  When connectivity goes off, I can still ping the server and connect to it via RDP.

I do find one weird message in the Event Log though, but it is informational not critical.  It has to do with the VMWare helper service.

'Event 270 Not restoring network configuration for adapter with MAC address 00:50:56:94:32:A6. The device ID for this adapter is unchanged.'

and then this...

'Event 271 Restored network configuration.'

Otherwise, nothing else really stands out as being critical in teh event log.
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Maniac_47Commented:
when you updated the hardware, it may have changed the MAC address of the NIC.  You may have to create a new NIC and configure it for your current server's settings and see if this helps.

It looks to me like it says it won't restore the connection because the adapter has been unchanged, the connection drops, then it says "restored network configuration".  Something may be goofy with this so any type of driver update or additional card you could add virtually to see if that helps may resolve the issue (or at least isolate the problem).

Thanks,
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Maniac_47Commented:
UPDATE:

I'm sorry, i may be confused, are you talking about the host's event log or the vm's event log?
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jzacherAuthor Commented:
Talking about the Windows Server 2003 event log
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Maniac_47Commented:
I would try re-installing VMWare tools on the VM first, then try adding a second NIC if that doesn't work and see if it gives you the same error on the new card.  If not, you can just shut off the first, and add in the IP/DNS settings to the second and run on that one, removing the first non-working one when finished.
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automationstationCommented:
Sounds like IIS is shutting down on you which could cause this result. Check IIS to see if it is running when the shares get blocked.
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jzacherAuthor Commented:
Believe this was due to Outlook .pst file corruption.  Other admin was running fix tool on the .pst files, which hogged threads and took everything to a halt.  Outlook .PST files are a curse.  I wish MS had never created them.  
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