TV or soundbar sound cuts out or stutters

Symptoms

• Audio drops out briefly every few seconds
• Sound stutters during action scenes or loud passages
• Only wireless rear/sub speakers cut out
• Rebooting temporarily fixes it

Likely causes

• CommonWireless interference from WiFi routers or other 2.4GHz devicesWireless surround and sub links often share frequencies with home WiFi and microwaves.
• CommonLoose HDMI/optical cable connectionA partially seated cable can cause intermittent signal drops.
• PossibleHDMI-CEC/ARC handshake conflict with the TVSome TVs periodically re-negotiate ARC, causing brief audio interruptions.
• PossibleOverheating soundbar or receiverSome units throttle or mute briefly when running hot for long periods.
• Less commonFailing internal component in the soundbarIntermittent hardware faults can cause random dropouts unrelated to settings.

What to do

1. Reseat the HDMI or optical cable at both ends firmly.
2. Move any wireless routers, cordless phones, or microwaves away from the soundbar and wireless speakers.
3. Turn off HDMI-CEC on the TV temporarily to see if dropouts stop.
4. Ensure the soundbar has ventilation space and isn't in an enclosed cabinet that traps heat.
5. Update the soundbar and TV firmware to the latest version.
6. Switch to a wired connection (optical or direct HDMI) if currently using a wireless audio link, to test if wireless interference is the cause.
7. Power cycle the entire system: TV, soundbar, and any streaming devices.

When to call a pro

If dropouts continue after ruling out interference and cables, the soundbar's internal wireless module may be failing and should be checked by the manufacturer's support.

Safety