After we have converted a hub to secure manually, on the last steps where the robot is converted to secure, the NAS crashes.
The only workaround is to completely remove the probe and install from scratch.
Defect in the nas probe possibly causing this
nas (Alarm Server) Release Notes- nas 23.4.4
This version 23.4.4 resolves several "crash" scenarios similar to the one seen which most likely was occurring while converting the hub to secure.