Hi,
We have the same issue. Devices (cnPilot E410) are up and running, but on cnMaestro they are offline for 50 days.
All devices can ping cloud.cambiumnetworks.com.
@Stjepan_Vrbek
Please share tech-support of AP.
Please edit out the MAC address and serial number from your post and send to @CAM_TSK in a direct message. This information is privileged and should not be shared publicly.