Acer Predator Helios Neo 16 Bluetooth is missing, will not pair or disconnects

The checks in more detail

Remove the device and pair it again, and choose it for both input and output if you use its microphone. Because PredatorSense and DTS have been reported to interfere with audio, a Bluetooth headset that sounds wrong may be affected by the same software; end PredatorSense and test. Keep the laptop away from USB 3 devices that emit noise at 2.4 GHz, such as an external drive beside the radio. Shut down fully with Fast Startup off. If Bluetooth and Wi-Fi both fail, the card may be faulty.

For gaming headsets, a wireless dongle that comes with the headset is usually better than Bluetooth, since it uses a dedicated link with lower latency and does not share the Wi-Fi card; if Bluetooth audio lags in games, switching to the dongle or a wired headset is the practical fix. Bluetooth is best for casual listening. If the headset connects but crackles only when PredatorSense is on, treat it as part of the audio interference described by owners, and test with PredatorSense closed.

A change of Bluetooth channel is not possible on Windows, but moving your router's 2.4 GHz channel to 1 or 11 sometimes reduces interference with Bluetooth in the same band. If you pair gaming peripherals with Bluetooth, such as a controller, check whether it works better by cable or by its own dongle, and update its firmware; controllers often have their own pairing quirks that mimic a laptop fault. Keep a spare cable so you can tell the difference quickly.