Since sometime this morning, all but a few SMs running 4.6.0.1 are rebooting exactly every 5 minutes.
I disabled cnMaestro on a few of them to see if some interaction between the two was causing the reboots, but that didn’t help. I’m updating a few of them to 4.6.1 right now to see if that resolves things.
Anyone else seeing similar? There is a thread on the Facebook Cambium group where others seem to be seeing the same or similar.
No watchdog is configured. Nothing in the logs after a reboot. These same SMs report that they are unable to check for firmware updates since this started. I hope there isn’t some hidden watchdog “feature” that broke because something changed on Cambium’s side.
Updating the SMs to 4.6.1 solves the problem. I’m guessing there is some date-related bug in 4.6.0.1.
The other “fix” for this behavior is to put a junk string in the cnMaestro URL field for the affected radios. Once they stop talking to cnMaestro the reboots stop.
Whatever mechanism in cnMaestro that is causing these watchdog-like reboots is of incredibly poor design.
I’ve seen a report that certificate errors are logged on affected radios right before reboot, so I would guess maybe an ssl certificate expired somewhere and that has triggered this.
Yeah, I also have a bunch of 4.6.0.1 radios doing this, random reboots every 5 mins. As well as other devices prior to 4.6.1 doing this. Cambium should urgently roll back whatever they broke in cnMaestro.
I’m seeing a lot of our ePMP radios throughout our network rebooting 5-7 minutes after reconnecting. Some with older firmware. Started about 16:00hrs on the 18/05/2022 at around 16:00hrs AEST
Can someone PM me tech support file from affected SM? I need to see configuration. We have some reports but it does not affect all customers with outdated FW.
Hi @jessearcher!
Fe have found out it has just coincided with CnMaestro update. The issue is not related to this update. Please check the notice below.