Troubleshooting : Erratic behaviour
Short answer
Move the speaker to another spot or turn off interfering electronic devices. Unplug the speaker, then plug it in again. If the issue persists, perform a factory reset.
If your Stanmore multi-room speaker is performing erratically, the likely cause is that there is interference from another electronic device. Try these options to solve the issue:
Move the speaker to another spot, or turn off and move potential interfering electronic devices.
Unplug the speaker power plug from the wall socket, wait for a full 15 seconds, then plug it in again.
Perform a factory reset to restore the speaker to its original settings.