Labview 2010 randomly restarts computer - windows event viewer points to nap agent

Question

When running my current VI that I am working on, the computer will ranomly reboot. There is no freeze, or blue screen, just a reboot. When examining the windows event viewer after the reboot, the following warning is listed immediately preceding the reboot:
Event ID 39
The Network Access Protection Agent was unable to determine which HRAs to request a health certificate from.
A network change or if GP is configured, a configuration change will prompt further attempts to acquire a health certificate. Otherwise no further attempts will be made.
Contact the HRA administrator for more information.
Previous to getting this warning before a reboot, I was getting the following error:
Event ID 10016
The application-specific permission settings do not grant Local Launch permission for the COM Server application with CLSID
{24FF4FDC-1D9F-4195-8C79-0DA39248FF48}
 to the user NT AUTHORITY\SYSTEM SID (S-1-5-18).  This security permission can be modified using the Component Services administrative tool.
This is a DCOM service eror and the CLSID is referring to NAPAGENT. So I configured DCOM to allow the NAPAGENT to start and now I get the Event ID 39 warning and still get the reboot.
I am not sure why labview is even asking for DCOM or NAPAGENT to start at all. My VI is simply reading information from two serial instruments.
This reboot behavior does not occur when the computer is not running labview.
I am attaching a copy of the main VI, if it will be helpful I can post the sub VI's as well.
Thanks in advance for your help.
-Justin Lee
Attachments:
testscan10.8.vi ‏179 KB

Answer 1

Hi Joe,
Thanks for the reply.
I am running windows XP pro service pack 3.
I am running a standard instal of labview 2010 with the latest VISA drivers, no other modules or options installed.
I am only reading and writing to the serial ports (com) in my code. I don't believe that virus/spyware/malware is to blame for several reasons.
1. This only occurs when running this VI in labview.
2. I have replicated this problem on another computer.
3. I am behind a government (DOE) firewall and virus scans and checks are performed constantly.
4. If I take out the serial portion of my code via a T/F case structure, it will not crash.
The code will run fine for sevetral hours sometimes and then crash, other times it will crash after only a few minutes.
Please let me know what other information you require.
Thanks!
Justin Lee