windows7 pro on 2012 domain: pc will at random stop responding while connected to the domain

I have a new domain win2012 server, using all win7 workstations:  one particular workstation will stop responding at random intervals when connected to the domain.  When the PC is off the domain and standalone, it works without issues.

Any ideas?
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cvvoodAsked:
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cvvoodConnect With a Mentor Author Commented:
I found a few apps that were erroring out, I also found the IAStor raidport 0 to be getting reset.

I had run across some issues with kerebos authentication a while back with win7 n domains, I though this may be the problem.  

I have removed the offending apps:  bonjor: HP client security: and a couple of others...  

Thank you for your time today.

C
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Tony GiangrecoCommented:
I would check the event logs on it to see what happens just before it loses connectivity. Also see if the anti virus is locking it out do to some activity it detects.

Check the logs on the server to see if somehow it is logged as logging out.
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Michael MachieConnect With a Mentor Full-time technical multi-taskerCommented:
Make sure the NIC is not set to 'Allow the computer to turn of this device to save power' in the properties of the NIC.
Network and Sharing Center -> Change Adapter Settings -> (Select NIC) R-ClickProperties -> Configure -> (Click Yes/OK if prompted) -> Power management Tab -> Deselect the option 'Allow computer to turn off this device to save power' -> Press OK

Start there first as your NIC will no longer go to sleep.
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cvvoodAuthor Commented:
This was an offending HP Security app.   The app was un installed and the user has not complained about the problem since.
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Tony GiangrecoCommented:
Glad to hear you resolved the issue.

Did you find the offending app listed in the logs as I mentioned above?
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cvvoodAuthor Commented:
This was a good attempt, but not enough data for the experts to really give an answer
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