Hello,
Another Test you could perform is to change the sylink.xml in SEP 12.1. Without stopping the Tamper protection try changing the sylink.xml file.
Check this Article:
How to change the sylink.xml file in Symantec Endpoint Protection (SEP) 12.1
http://www.symantec.com/docs/TECH157585
It is possible to manually replace the sylink.xml file, however in order to do so Tamper Protection must first be disabled.
This can be done on the client by going to Change Settings > Click Configure Settings under Client Management > Tamper Protection (Tab) > Then uncheck the box that saysProtect Symantec security software from being tampered with or shut down.
Once tamper protection is disabled:
- Stop the SMC service by going to Start > Run > type in > smc -stop.
- Once the service is stopped copy the sylink.xml file from the new SEPM and on the client side put that sylink.xml file under
"\Documents and Settings\All Users\Application Data\Symantec\Symantec Endpoint Protection\<current_install_build_number>\Data\Config"
For Windows 7/2008/vista :
C:\Users\All Users\Symantec\Symantec Endpoint Protection\12.1.671.4971.105\Data\Config
- Replace the existing file and restart the SMC service with Start > Run > smc -start