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NAC Stopped working after 4.9.1 update

Not sure if I missed something in the update/release notes, but my NAC stopped working after I updated the CAS/CAM to 4.9.1. I was on 4.8,0 and it was working fine but now it's not working. Below are some of the things that I am noticing.

- If I set a port to be controlled and plug my PC into the port I am moved to the authentication VLAN and can proceed to the web login where I can download the NAC Agent, and then nothing happens after the agents is installed and in the tray.

- If I right click on the agent I see that "login" is greyed out.

- If I right click on the agent and go to properties the page that comes back has the correct CAM identified.

Any ideas???