My AMBR is not accessible based on errors in the cloud and the LED is ONLY solid red or solid red and flashing green for more than 5 minutes.
You can try a hard reset on the AMBR:
2. Unplug the AMBR
3. Locate Button A on the back of the device
4. While the AMBR is unplugged hold button A down for 10 second
5. Plug the AMBR back in and use it normally