Bluetooth issues on Windows are usually solved with a few quick steps.
1. Check Bluetooth is on
Open Quick Settings (Windows + A) and turn on Bluetooth.
2. Remove and re-pair the device
Settings > Bluetooth & devices, remove the device and pair it again.
3. Check device battery
Low battery causes poor connections.
4. Run the troubleshooter
Settings > System > Troubleshoot > Other troubleshooters > Bluetooth.
5. Update the driver
Device Manager > Bluetooth > right-click the adapter > Update driver.
6. Restart the Bluetooth service
In services.msc, restart Bluetooth Support Service.
