Windows 2012R server restarting mysteriously

Hi There,

My Windows 2012R server is restarting on it's own sometimes every 40 minutes and sometimes every few hours.

I checked the Event Viewer and found Event ID 1074, but it seems vague and I'm not sure where to go from here.

Can someone suggest how i can determine what the problem is and fix it?

thanks! Kristin

- System

  - Provider

   [ Name]  User32
   [ Guid]  {b0aa8734-56f7-41cc-b2f4-de228e98b946}
   [ EventSourceName]  User32
  - EventID 1074

   [ Qualifiers]  32768
   Version 0
   Level 4
   Task 0
   Opcode 0
   Keywords 0x8080000000000000
  - TimeCreated

   [ SystemTime]  2016-11-18T00:31:14.182492300Z
   EventRecordID 91130
  - Execution

   [ ProcessID]  536
   [ ThreadID]  636
   Channel System
   Computer WIN-AQLCJ3LOQ2R
  - Security

   [ UserID]  S-1-5-18

- EventData

  param1 C:\Program Files\Amazon\XenTools\LiteAgent.exe (WIN-AQLCJ3LOQ2R)
  param2 WIN-AQLCJ3LOQ2R
  param3 No title for this reason could be found
  param4 0x8000000c
  param5 restart
Who is Participating?
No MoreConnect With a Mentor Commented:
Which server is XenApp server ?

Also, can you check with somebody who is also working with this system if there was any update or change of setting last few days
No MoreCommented:
Possible Faulty PSU or UPS
forcedexposureAuthor Commented:
Thanks for your input. However, this is a server at AWS. It's not on a physical box. Does that rule out the possibility of hardware failure?
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No MoreCommented:
Actually, IT does

Oh wait a second this is on Citrix   C:\Program Files\Amazon\XenTools\LiteAgent.exe
No MoreCommented:
Could you check XenDesktop group if the windows server isn't included there by the chance

and check also power settings in case there is shutdown when iddle
rindiConnect With a Mentor Commented:
Make sure you have setup the system to create small crash dumps, and then after 3 more reboots zip the dumps you got and attach the zip file your next comment.

Also check your hardware. Servers usually have tools installed that you use to monitor it's hardware health.
forcedexposureAuthor Commented:
Hi Folks,

I figured out that AWS EC2 is set up to restart the server whenever it is using 90% of the CPU for 5 minutes. So now I have to figure out what's hogging the CPU.

thanks, Kristin
forcedexposureAuthor Commented:
Thanks for your help!!
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