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VM machine loses network connectivity after a long period of time.

I have a Windows Server 2008 Enterprise 32-bit Server SP2 running as the host OS running Microsoft Virtual Server 2005 version R2 SP1.  I am having a problem with 2 of the VM's on the system.  One is running Windows Server 2003 and the other is running Windows Server 2008.  It is a random problem as far as timing but will happen consistently.  At some point during  a period of 1 to 3 days, the VM's seem to "go to sleep".  As in they quit responding to network traffic.  As soon as I log into the Virtual Server Manager and access their console (I don't even have to login, I just have to connect to the session) the network connectivity starts responding.  I even started a continuous ping on the servers to my workstation.  When they would "wake up" they would show no packet loss.  The two VM's don't act like this at the same time either.  One could be responding to network traffic while the other doesn't.  There are no entries in any logs either of application errors or system errors.   What is going on?

Thanks

Bryan Smith,
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BryanRSmith
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BryanRSmith
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1 Solution
 
greedjCommented:
Yikes!
Is there some reason your not using Hyper-v?
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BillCommented:
I wonder if backups using VSS are pausing the VMs and they're not waking up properly some of the time.

If you're host server is running Windows Server 2008 Enterprise, why in the world aren't you using Hyper-V?  We've easily copied and converted VMs before from MS Virtual Server 2005.  The only slight glitch is that the integration services didn't automatically install.  I had to do that manually using key strokes, no mouse.
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BryanRSmithAuthor Commented:
Abandoned the VM scenario completely.  It was originally not intended to go into a production environment but had to out of necessity.  New hardware to replace the VM's and a complete wipe of the host system to go from 32-bit to 64-bit.
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BryanRSmithAuthor Commented:
The biggest problem was that the host was 32-bit.
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