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Sound and video out of sync | Bose Home Speaker 450
If audio has been paused and un-paused, try turning your product off and back on.
With some devices, pausing audio can cause audio to become slightly out of sync with accompanying video each time playback is resumed. If sync issues seem to worsen each time audio is paused and resumed, turn your product off and back on to restart the Bluetooth® connection.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more information, see Resetting your product.
Try a different app.
If the issue only occurs with a particular app, it is likely related to the app or app settings.
If grouping multiple Bose systems, check if a Wi-Fi network extender or repeater is in use.
Bose systems that you want to play in sync as a group might play out of sync if some systems in the group are connected to a wireless range extender and others are connected to your router. Since the extender receives and then re-broadcasts signal from the router, systems connected to the extender could receive signal later than those receiving signal directly from the router. To avoid this for systems beyond the range of the router, connect them directly to the router with an Ethernet cable (if possible). Otherwise, try repositioning the systems or router so they all connect either to the router or to the extender.
If grouping multiple Bose systems, check if a Wi-Fi network extender or repeater is in use.
Bose systems that you want to play in sync as a group might play out of sync if some systems in the group are connected to a wireless range extender and others are connected to your router. Since the extender receives and then re-broadcasts signal from the router, systems connected to the extender could receive signal later than those receiving signal directly from the router. To avoid this for systems beyond the range of the router, connect them directly to the router with an Ethernet cable (if possible). Otherwise, try repositioning the systems or router so they all connect either to the router or to the extender.
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