Why does my device keep disconnecting from Bluetooth?
Pairing conflicts, interference and battery — why Bluetooth drops, and the reset that fixes most of it.
- Difficulty
- beginner
- Time
- 20 min
- Read
- 2 min
Short answer
Forget the device in your Bluetooth settings and pair it again from scratch. Stale pairing data causes most persistent dropouts, and re-pairing takes a minute.
Bluetooth problems are usually one of three things: a device trying to connect to something else, physical interference, or corrupted pairing data. They present identically, so it is worth working through them in order.
Step by step
- Check it is not connected to something else.Headphones in particular connect to the last device that is in range and switched on. A phone in another room routinely steals them.
- Forget the device and re-pair.Remove it from the Bluetooth list entirely, then pair fresh. This clears corrupted pairing data and is the single most effective fix.
- Charge both devices.Low battery causes intermittent Bluetooth dropouts well before the device warns you it is low.
- Reduce the distance and obstructions.Bluetooth is roughly a ten-metre technology and walls, bodies and metal all cut that considerably. A pocket on the opposite side of your body is enough to cause dropouts.
- Look for interference.Bluetooth shares the 2.4GHz band with wifi, microwaves and cordless phones. Dropouts that happen at the same time every day often have a mundane cause like a microwave.
- Turn Bluetooth off and on, or restart both devices.Resets the radio and clears transient state. Worth doing before anything more involved.
- Check for firmware updates.Headphones and speakers get firmware updates through their companion app, and connection fixes are the most common thing in them.
- Reduce the number of paired devices.Some devices only hold a limited number of pairings and behave unpredictably beyond it. Remove ones you no longer use.
Tips
- Re-pairing solves far more Bluetooth problems than any setting change. Try it before anything else.
- Multipoint — connecting to two devices at once — is convenient and is also the cause of most "it connected to the wrong thing" complaints.
- Keep the companion app installed for headphones and speakers. Firmware updates fix real connection bugs.
If it doesn't work
Headphones connect to the wrong device
Cause: Multiple paired devices in range — Fix: Turn off Bluetooth on the device you are not using, or disable multipoint in the headphone app.
Audio stutters when walking
Cause: Body blocking the signal, or interference — Fix: Move the phone to the same side as the dominant earpiece, or out of a back pocket.
Will not pair at all
Cause: Not in pairing mode, or already paired elsewhere — Fix: Put the device into pairing mode explicitly — usually holding a button — and forget it on any other devices.
Drops out at the same time daily
Cause: Interference from a specific appliance — Fix: Note what else is running. Microwaves and some cordless phones flood the 2.4GHz band.
Questions people ask
Why do my headphones keep disconnecting?
Most often stale pairing data or competition from another paired device. Forget and re-pair first, and check nothing else nearby is claiming them.
Does wifi interfere with Bluetooth?
They share the 2.4GHz band, so heavy wifi use nearby can cause dropouts. Moving your router to a different channel sometimes helps.