thank you for the reply anthony. I spent time today with Dan from Support.
No resolution unfortunately.
The client has no connectivity issues to the network other than AC. I physically took the client to the network switch and plugged directly into it using a brand new cat 5e cable, yet it was still connecting at 12 seconds to the AC database.
Using CMD line, I can ping the server and it returns packets within 7-10msec or less, there are no dropped packets. There is nothing otherwise different about this machine. It uses the same server driven antivirus and group policy security settings pushed out by the server to the clients.
Another user suggested directly modifying the etc/hosts file on that client. I asked Dan and he confirmed I should try this. I was called away and unable to fully complete this step, but I will try and report back if ineffective.
