Sony NPA-MQZ1K Multi Battery Adapter Kit - Manual (Page 126)

To use the built-in MIC, you may need to update the TV's software.
Check if the Built-in MIC Switch is on. The voice recognition performance of the built-in
MIC may also degrade in the following cases.
When eARC features are enabled
When a sound bar is connected
When [Digital audio output] is set to [Prioritize pass through]
[125] Sound | Sound
The TV responds to sound from the surroundings
(only TVs with a built-in MIC).
To use the built-in MIC, you may need to update the TV's software.
The TV's built-in MIC may pick up sound from the surroundings and respond
unintentionally.
Change the sensitivity of the TV's built-in MIC to [Medium] or [Low].
Press the (Quick Settings) button on the remote control, and select the following in
order.
[Settings] — [System] — [Built-in MIC sensitivity]
[126] Troubleshooting
Network (Internet/home)/apps
The TV cannot connect to the Internet/Network.
You can connect to the Internet, but not to certain apps and services.
[127] Network (Internet/home)/apps | Network (Internet/home)/apps
The TV cannot connect to the Internet/Network.
If the wireless network does not connect or disconnects, try the following.
Press the (Quick Settings) button on the remote control and check that the following
setting is enabled.