Sonos Speaker Not Playing Music or No Sound

Common Causes

When your Sonos One (Gen 2) stops playing music or produces no sound, the issue is typically related to network connectivity, software state, or audio source configuration. Here are the most frequent causes.

• Wi-Fi connectivity loss — The Sonos One relies on a stable network connection for streaming. If Wi-Fi drops, music stops and the speaker may appear unresponsive in the app.
• Sonos app not detecting the speaker — If the app and the speaker are on different Wi-Fi networks or subnets, the speaker may appear offline.
• Volume set to zero or muted — The physical touch controls on top of the speaker can accidentally mute or minimize the volume.
• Music service authentication expired — If your Spotify, Apple Music, or other streaming service login has expired, playback will fail silently.
• Software crash or freeze — The speaker's internal software may occasionally freeze, requiring a restart.
• Incorrect audio source grouping — If the speaker is grouped with other Sonos devices and the group leader has an issue, the entire group may stop playing.

Step 1: Check Volume and Mute

1. Touch the top of the Sonos One to see if the LED lights respond. If they do, the speaker is powered on.
2. Tap the volume up touch control on the top right of the speaker to increase volume.
3. Open the Sonos app and check the volume slider for the speaker. Make sure it is not at zero.
4. If the speaker is part of a group, check the group volume as well as the individual speaker volume.

Step 2: Verify Network Connection

1. Open the Sonos app and check if the Sonos One appears in your system. If it shows a warning icon or does not appear at all, it has lost its network connection.
2. Make sure your phone is connected to the same Wi-Fi network the Sonos One is on.
3. Restart your Wi-Fi router by unplugging it for 30 seconds and plugging it back in. Wait two to three minutes for the network to fully restart.
4. Check whether other devices on your network are functioning normally. If multiple devices are offline, the issue is with your network, not the speaker.

Step 3: Restart the Sonos One

1. Unplug the Sonos One from power.
2. Wait 30 seconds.
3. Plug it back in and wait for the LED to flash and then turn solid white, indicating the speaker has rebooted successfully.
4. Open the Sonos app and attempt to play music again.

Step 4: Re-authorize Your Music Service

1. In the Sonos app, go to Settings > Services & Voice > Music & Content.
2. Select the music service that is failing to play (Spotify, Apple Music, Amazon Music, etc.).
3. Tap Remove to unlink the service, then add it again by signing in with your current credentials.
4. Try playing a track from that service to confirm the connection is restored.

Step 5: Check for Software Updates

1. In the Sonos app, go to Settings > System > System Updates.
2. If an update is available, install it. Sonos periodically releases updates that fix playback bugs and improve stability.
3. The speaker will reboot after the update. Wait for it to come back online and test playback.

Step 6: Remove from Group and Test Solo

1. If the Sonos One is grouped with other speakers, ungroup it to test independently.
2. In the Sonos app, go to the Now Playing screen and tap the Group icon (stacked circles).
3. Deselect the Sonos One from any group, or remove all grouped speakers so the Sonos One plays alone.
4. Play music directly to the Sonos One. If it works solo but not in a group, the issue is with the group leader or another speaker in the group.

Step 7: Factory Reset

If all previous steps have failed, a factory reset will restore the Sonos One to its default settings.

1. Unplug the Sonos One from power.
2. Press and hold the Connect button (on the back of the speaker) while plugging the power cord back in.
3. Continue holding the button until the LED flashes amber and white, then release.
4. The speaker will reset and enter setup mode. Open the Sonos app and add it as a new device.
5. Re-run Trueplay tuning and reconfigure your music services after setup.
6. If the speaker still produces no sound after a factory reset, the internal speaker or amplifier may be faulty. Contact Sonos Support for warranty service.