Cambium Issue

[MikeGreen]

Morning All,

 

Got a very strange issue with our Cambium wireless, it has been in for over a year and was working great until recently. We are having access points go offline randomly apart from 2 which seem to go off at around 4am every day! Other access points go offline when laptops start connecting to them. I don't think they are rebooting as they are usually off for between 1-2 minutes and a full reboot takes them offline for 5-6 minutes. Looked in the logs a "status down" event is logged. using CLI shows a generic linux error of "DEV_REBOOT_WATCHDOG_RESET". When the AP's do go off and come back on they show as being online for say 5 mins but there uptime is 40+ plus days, which to me suggests that they are loosing network connectivity but not power even though they POE???

 

Reset a test AP to factory defaults and it came back online and in sync but it still goes offline again when clients start to connect. All ap's have full internet access and are not filtered at all.

 

Anyone had anything like this? I have reached out to cambium support but unfortunately replies are taking a long time and are lacking in helpful information.

 

Thank you all in advance.

[sister_annex]

We had this a while back, we use e410, 600 and 5xx points. I assume you're on the latest firmware?

 

In the end we got it down to a config issue (trying to get the points to do too much).

 

If I can get it out of our system I will post our AP config to see if it helps in anyway

[MikeGreen]

Thanks for the reply. It looks as though we may have resolved this on one AP but don't want to speak to soon. We upgraded the firmware back in April and even though rolling back the firmware doesn't work, rolling back the firmware then performing a factory reset seems to work (at least we cant get it to fail anymore). But it has to be done in this order. A factory reset on its own doesn't work nor does a factory reset and then down grade the firmware.

 

Strange