I installed Symantec Endpoint Protection on to our new Windows Server 2008 R2 that is running Remote Desktop Services. Once I did this I was no longer able to remote in to the server with the domain administrator account. Whenever I would I got an error that popped up saying "Access is Denied". Other users were able to get connected but after a short time they got an error that said "Because of an error in data encryption, this session will end. Please try connecting to the remote computer again." I checked everything I could but couldn't find anything. Once I removed Symantec and restarted I was able to get in. Any thoughts?