Avalanche Site Edition 5.3.0
All of sudden, without having made any changes, the devices became unlicensed and the system would not respond to any other troubleshooting steps. Adding demo licenses didn't help nor did adding the correct type of maintenance licneses.
1. Take an Avalanche Server backup
2. Uninstall Avalanche Site Edition
3. Re-install Avalanche Site Edition
4. Restore the server backup
5. Add the licenses back to the server