During the first installation with the Nebula App or in the Nebula Control Center (NCC) you kind of "blind Fly" during the boot process. The status via the Nebula app and later also in the Nebula Control Center has a very long waiting time for up-to-date status.
On the one hand, you feel that way because there is no other status recognition apart from the LED on the LAN port. If the green LED on the LAN port is flashing constantly (like the direction indicator in a car) then there was a problem with the connection to the Internet / Nebula. Then restart the device. If this happens again, the device is defective. It usually recovers afterward and logs on to the NCC. Due to this blind flight, it is also not possible to see whether the product is currently receiving a firmware update. Data traffic can only be recognized by the actively flashing LED on the LAN port. A little patience is then required until the access point is online again. If you discover a fast-blinking green LED on the LAN port, please do not disconnect the device as it probably gets an update in this moment.