During migration, all devices will show as “Disconnected” for a few minutes. Use the “Set Inform” tool under Maintenance in the new controller to re‑associate them.
It is 2025 (or later) and Ubiquiti is on Version 7.x or 8.x. Why would you downgrade or stick to 5.4.11? unifi-installer.exe 5.4.11
Cause: SSH fingerprint mismatch. Fix:
Some users report that newer controllers aggressively force "Minimum RSSI" and "Band Steering" by default, kicking off older IoT devices (printers, smart plugs). Version 5.4.11 allows a more "permissive" airtime management. It is 2025 (or later) and Ubiquiti is on Version 7