This problem is occuring when your systems are not getting communicate threw server for long time. After startup Hardware ID Recreated and getting different path.
Diferrent path reason is when you install symantec on that client the patch which you have installed on that system was of that differ location.
Due to that this problem occur.
Solution replace the Sylink file
Path - - C:\Program Files\Symantec\Symantec Endpoint Protection\SyLink.xml