I am running SEP 12.
Rafeeq,
I did follow those exact instructions. When I click on a client and go to edit properties under Deployment Status it says "The client decided to reject the upgrade package" and under Deployment Message it says "Client has ignored upgrade package".
If I add new clients, the client install feature set works and sonar is not installed, but for my current users it is not removing the sonar. I would really hate to have to manually reinstall SEP on all of my servers. Any ideas?