Before booking an appointment, here are some helpful steps you can try out:
1) Try doing a hard reset on your Sonos product. Here's a video guide.
2) Contact Sonos support We recommend this step because Sonos has an advanced remote troubleshooting software. It can precisely identify the issue and bring you through step-by-step to resolve it.
Here's how to contact them a. Toll-Free Number From SG: 8008526105 Operating hours: 5PM - 1AM SGT
b. Chat Options Go tohttp://support.sonos.com and select USA. There will be chat options available. Operating hours: Weekdays 10:00 am - 9:30 pm Eastern Standard Time Weekends 10:00 am - 6:00 pm Eastern Standard Time