Random AP reboots: heartbeats lost + kernel panic
We're seeing random reboots of certain AP's (R500 and R510), connected to our ZoneDirector 1200 (release 10.3.1.0 build 21).
In the ZoneDirector Events/Activities:
AP[...] joins with uptime  s and last disconnected reason [AP Restart : kernel panic]
In the AP Events/Activities:
First AP[...] heartbeats lost, followed by AP[...] joins with uptime  s and last disconnected reason [AP Restart : kernel panic]the same entry as
There's no pattern as to when it occurs: it can happen in the middle of the night, during working hours, not always on the same AP's. We don't know what's the reason of those kernel panics and we can't reproduce the issue. Any advice or related information could be helpful.