troubleshooting Question

Server Reboots every Hour for no reason - Unexpected Shutdown

Avatar of hrybko1
hrybko1 asked on
Windows Server 2003
18 Comments3 Solutions2360 ViewsLast Modified:
My setup: Domain of 10 Microsoft servers in a datacentre behind an ISA 2006 Firewall. Servers are a mixture of web servers running iis6 and 2 database servers running SQL 2005. All servers receive latest SUS updates and are protected by F-PROT antivirus as well as a weekly CLAMWIm scan.

The problem:
I have an intermittent problem whereby one or more of my Windows 2003 servers in the domain start rebooting without any warning or error msg - usually once every hour. The reboots will be almost exactly on an hourly basis. Event log shows only "unexpected shutdown" and no other errors.
This usually carries on for 2 or 3 days before getting "cured" - after which it dissapears ...

The thing is that the problem starts on a particular server and then I go crazy trying to find the problem - run av check (have tried Norton - Trend and CA) - check all OS files are not corruptedwith PREVX CSI - and go thu each running service. Nothing!
I know this could be a hardware prob but the last 3 servers have all been different hardware configs.
And the suddenly the problem goes away .... until it hits another server - maybe after a week or sa has passed. (I had the exact problem at a customer site and could not solve it. We eventually bought a new server and reloaded and the problem went away.)

I KNOW that other servers out there in the world must be having the same problem but I have searched far and wide without finding a solution.

Thank you


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