We have a Cisco Clean Access Standard Manager running version 4.9.1 with the Windows NAC Agent version 18.104.22.168 running on the server for posture assessment of our clients connecting via SSL AnyConnect VPN. The CAS is running in an in-band Layer 2 Virtual Gateway deployment. After a user connects to the VPN and attempts to browse to a network resource via a web browser they are redirected (as expected) to the CAS server to download and install the NAC Agent. Once the NAC agent is installed it attempts to begin the posture assessment. The assessment window sits for a few seconds, closes and then starts the assessment again. This cycle continues in an endless loop. Does anyone know what could be causing this?