In one embodiment, an audio device includes a plurality of ports. The audio device receives, from a first network via a first port included in the plurality of ports, at least one of a first audio signal and a first control signal. The audio device transmits the at least one of the first audio signal and the first control signal to an audio output device. In case of a fault associated with the first port, the audio device transmits at least one of a second audio signal and a second control signal to the audio output device, where the at least one of the second audio signal and the second control signal is received from a second network via a second port included in the plurality of ports.