Já copiei o ficheiro e fiz a alteração. Aparece este erro no log:
2018-04-15 10:16:53 ERROR (MainThread) [homeassistant.core] Error doing job: Exception in callback UDPTransport._on_read_ready
Traceback (most recent call last):
File "uvloop/handles/udp.pyx", line 56, in uvloop.loop.UDPTransport._on_read_ready
OSError: [Errno 9] Bad file descriptor
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "uvloop/cbhandles.pyx", line 52, in uvloop.loop.Handle._run
File "uvloop/handles/udp.pyx", line 60, in uvloop.loop.UDPTransport._on_read_ready
AttributeError: 'MediaroomProtocol' object has no attribute 'error_received'
E o componente desapareceu do frontend do HA e nem aparece na lista das entidades…