Where is "Last time status changed" in Registry

Hello,

I am trying to find in the Registry when was last time SEP client connected to SEPM but without any success. I checked few forum threads but nothing which helps:

https://www-secure.symantec.com/connect/blogs/registry-key-location-changes-version-1211100

http://www.symantec.com/connect/forums/sep-client-last-check-time

https://www-secure.symantec.com/connect/articles/symantec-endpoint-protection-few-registry-tweaks

Does anyone knows where this can be found in Registry for SEP 12?

Thanks