Issue
Random no response from access server invalid attempt events showing up in event view
Environment
Cyber 1.74 SP2
CX9900
Cause
Network issues (router offline) preventing remote validation attempts from reaching the access server
Resolution
Make sure all routers are online.
The may be an IP conflict with the controller. Disconnected the Lan cable from the controller and ping the controller IP, if there is a response then another device has that same IP.