Powerline av600 has stopped working. Led flashing in sequence with top two lit all the time, every 8 seconds the 3rd light comes on and the connection is up for 2 seconds. There is also a high pitched noise which I didn't notice before. I have another similar powerline working fine with 4 lights on.
Powerline flashing, high pitch noise and disconnecting every 8 seconds
Hardware Version: V1
Firmware Version: ?