is it your own WiFi signal if it is, is it been set with a password for protection preventing other users connection to your signal? Update: Usually if it's able to pick up the wi-fi network but does not want's to connect is usually with the secuirity settings. you can try by deleating that as you defalt network and the se-activate it (try to reconnect to it) the default proiblem is usually the security settings.
Usually that means that some one else or some or other devices is giving a frequency that took over the control unless there's some thing wrong with your remote elements best is to have it tested to ensure that you devices works correctly before crashing it to pieces.
have you looked at you sound settings, secondly it usually is because the speaker is broken and has to be replaced Update: Yes all elements can be replaced (reinstalled) from a licensed dealer they usually have all the elements and the programs on their computers to reprogram in back to normal