Some robots are no longer sending alerts.
The robot is active in IM and qos is being sent fine as can be seen in DrNimbus but the alerts are missing
There was a robot with the same ip address which was in maintenance mode causing the alarm to be ignored.
Nas.log was analyzed and showed
Jul 18 08:22:51:039  nas: maint: dev_id 'D2827584B12AEC13DD99A69BF22DA4F85' from 'subscriber' '**.***.150.77' IS in maintenance, alarm is ignored.
Following up on the ip address the duplicate robot was found and removed