A number of times now had the system sound muffled then comes up fault call bose. Turned it off and disconnected Wi-Fi. Reset and checked for updates. Ok. Worked fine again for a few days but started again. Called bose, they told me to do what I already had done. Lasted 20 minutes then done it again. Called them and now don't want to talk to me. Sad a system only 3 yrs old and such "quality" has failed. Anyone have any ideas?