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Server 2008 R2 Random Crash/Hang

Posted on 2010-11-18
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Last Modified: 2012-05-10
The first site is running a Hyper-V host with 3 guest operating systems (all running Server 2008 R2). One guest on that Hyper-V box is running Remote Desktop Serivces.

The second site is a phsyical stand alone box running Server 2008 R2 with Remote Desktop Services.

The servers at both sites will randomly loose network connectivity. Once we receive the alert so state the servers have gone offline (we have Kaseya running on both machines) we will remote to the Hyper-V or the remote management card of the server. We can see that the server login screen displaying CTRL+ALT+DLT is there and that the mouse is able to move (so the server is not completely frozen). Once we press CTRL+ALT+DEL that screen disappears and the background remains with no text or ability to login.

ANY help or assistance would be greatly appreciated.

What we have tried so far (on both servers).

- All windows updates

- Applied hotfix for this specific issue http://support.microsoft.com/default.aspx/kb/2265716/ - THIS DID NOT WORK

- Disabling Shadow Protect backup application (even removing it)

- Disabled anti-virus (running AVG on both sites)

- Completed hardware tests including memory and hard drive tests.

- Completed check disks on the physical and virtual drivers.

- Does not occur at any specific time (does not occur at night when no users are logged in).

- Removed Kaseya monitoring software.

- No event logs occur when the crash happens

- There are no DUMP files as the server does not Blue Screen
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Question by:Mark Pace
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5 Comments
 
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Expert Comment

by:saus
ID: 34170640
Sounds a bit difficult cause its on two different hardware boxes. Are both of these hardware boxes the same bought to the same time?  You did hardware checks, did you also try to just stress the CPU up to 100 % for awhile to see what happens. Doesnt that sound like an heat problem maybe?

regards
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Author Comment

by:Mark Pace
ID: 34184324
Hi Saus,
The servers were purchased at differnet times. One is a virtual and one is a physical so over heating doesnt seem logical.

Thanks for the idea regarding the CPU, will try and complete that today.
Are you able to confirm any good tools to complete this task?
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Author Comment

by:Mark Pace
ID: 34235899
Hi. The CPU stress test and heat test produced no results - the servers just kept going.

Anyone body have any other idea's or suggestions?
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Accepted Solution

by:
Mark Pace earned 0 total points
ID: 34340828
Hi All. The issue ended up being AVG Anti-Virus (when we originally tested AVG was not removed in its enitrity).
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Author Closing Comment

by:Mark Pace
ID: 34384149
Resolved by me.
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