If the Personal® music center continuously displays "NO RESPONSE," you will need to try re-establishing the link with the multi-room interface again. To re-establish the link, follow these steps:
Personal® music center screen flashing "NO RESPONSE"
Hold the Personal® music center close to the multi-room interface
press and hold mute for about 5 seconds, or until you hear a beep, and then release. after about 10 seconds, the personal® music center should beep twice to confirm that the link is established