All computer in network suddenly restarts why?

[Guest]

Hello,

We have 3 computers connected in our network. 2 computer has Windows XP and one is windows 2003 server. For some reason, 2 computers are restarting and one is shutdown suddenly.

we could not find the problem. it was happening mostly in early morning time.

please help me.

 

[KBentley57]

Does the shutdown occur randomly? or is there a pattern (hourly) to the shutdowns?

 

[Guest]

No. There is not shutdown or restarting in particular time. It is happening randomly.

 

[KBentley57]

Can you check your event logs?

Navigate to:

Control Panel
Administrative tools,
Event viewer,

and see if there is anything related to the errors or shutdowns

 

[Guest]

I don't find any error in event log. it has only windows starting log.

 

[samkay102]

You have a virus in your system try to use combofix from this site:
http://www.bleepingcomputer.com/download/anti-virus/combofix

 

[Guest]

Sonic wall log says "Malformed or unhandled IP packet dropped".

this will create problem?