If Bluetooth keeps disconnecting in Windows 11, first notice when the drop happens. Headphones that cut out only across the room point to a different problem from a mouse that disconnects every time the laptop wakes. The checks below start with the accessory and its surroundings, then move to Windows power settings, services, and drivers.
This guide is for a device that has already paired successfully but loses its connection. If Bluetooth itself has disappeared from Windows or Device Manager, use our missing Bluetooth adapter guide first.
Quick diagnosis: when does the connection drop?
- After sleep or while on battery: test Energy Saver and adapter power management.
- At a distance or near a USB hub: check range and interference.
- Only one accessory drops: charge it and check its own firmware or pairing record.
- Every Bluetooth accessory drops: focus on the PC's Bluetooth service and adapter driver.
- The device stays connected but sound stops: use our Bluetooth connected but no sound guide; that is an audio routing issue, not necessarily a dropped radio link.
Make one change at a time. After each fix, use the device for several minutes and, if relevant, put the PC to sleep and wake it again. That gives you a clearer answer than changing several settings at once.
1. Charge the accessory and check its range
A low battery can make earbuds, speakers, keyboards, and mice disconnect unpredictably. Charge the accessory or replace its batteries, then test it close to the PC. Restart it using the maker's instructions. If it has a charging case, check that both earbuds make contact with the charging pins and have enough charge.
Move the device back to its usual position only after it works nearby. If the connection fails at a particular distance or behind a desk, placement may matter more than a Windows setting. The stated range on a product box is not a promise that it will work equally well through walls, metal furniture, or a crowded radio environment.
2. Move USB 3.0 devices and other sources of interference
Microsoft notes that some unshielded USB 3.0 devices can interfere with nearby Bluetooth. Temporarily unplug a USB hub, storage drive, or dongle next to the Bluetooth adapter and test again. For a desktop with a USB Bluetooth adapter, try a different port or a short extension cable that places the adapter away from the computer case and other USB devices.
Also test with the accessory near the PC and away from other electronics. This is a diagnostic step: if the drops stop, reconnect items one at a time to identify which placement causes the problem. Do not assume that every WiFi device is interfering just because it uses wireless signals.
3. Turn off Energy Saver for a test
Windows may reduce power use while the laptop is running on battery. Microsoft specifically recommends checking Energy Saver when Bluetooth repeatedly disconnects.
- Select the battery icon on the taskbar or open Settings > System > Power & battery.
- If Energy Saver is on, turn it off temporarily.
- Use the Bluetooth device long enough to see whether the drops stop. Repeat the test on battery if that is when the problem occurs.
If this fixes the issue, review when Energy Saver turns on instead of leaving every power feature disabled. If it changes nothing, restore your preferred power setting and continue.
4. Check Bluetooth device power management
A Bluetooth radio or device may expose a Windows setting that lets the computer turn it off to save power. This is especially worth checking when disconnections happen after sleep.
- Right-click Start and open Device Manager.
- Expand Bluetooth. Open the properties of the Bluetooth adapter or the affected device.
- If a Power Management tab is available, clear Allow the computer to turn off this device to save power.
- Select OK, restart the PC, and test again.
Not every adapter shows that tab, especially on newer systems. If it is absent, skip this fix. Avoid registry changes offered as a way to force the tab to appear; they are not needed for the rest of this guide.
5. Run the Bluetooth troubleshooter
On Windows 11, open Get Help, search for Bluetooth troubleshooter, and follow its diagnostic steps. Microsoft recommends this automated check for repeated disconnects. It can help identify an adapter or settings problem before you reinstall anything.
After the troubleshooter finishes, restart if it requests one. Reconnect the accessory and test the same situation that caused the drop. Record any specific error it reports; that detail is more useful than a generic “Bluetooth not working” description if you later contact the PC maker.
6. Restart Bluetooth Support Service
Microsoft's disconnecting guide includes a restart of the Bluetooth Support Service. This can clear a temporary service problem without changing the adapter driver.
- Press Windows + R, type
services.msc, and press Enter. - Find Bluetooth Support Service.
- Right-click it and select Restart. If it is not running, choose Start if available.
- Turn the accessory off and back on, then test it.
Do not disable unrelated services or change every service to Automatic. A restart is enough for this check. If the service stops repeatedly or cannot start, note the error message and investigate the driver or Windows installation rather than repeatedly forcing it.
7. Update or roll back the Bluetooth driver
If all Bluetooth devices drop, or the problem began immediately after an update, inspect the PC's Bluetooth driver.
- Open Settings > Windows Update and install relevant updates. Check Advanced options > Optional updates for a Bluetooth driver if one is offered.
- Open Device Manager > Bluetooth, right-click the Bluetooth adapter, and choose Update driver > Search automatically for drivers.
- If Windows says the best driver is installed, check the PC manufacturer's support site using the exact model number. Microsoft notes that the manufacturer may offer a newer driver.
- Restart after installation and test the connection again.
When the disconnections started immediately after a driver update, open the adapter's Properties > Driver tab and use Roll Back Driver if the button is available. A rollback is targeted at a recent regression; it is not a general fix for every Bluetooth drop.
8. Remove and pair the accessory again
If only one device keeps reconnecting or Windows repeatedly asks you to pair it, its stored connection may be stale. Open Settings > Bluetooth & devices > Devices, select the device's More options menu, and choose Remove device. Then restart the accessory, place it in pairing mode, and add it again from Add device > Bluetooth.
Before removing a Bluetooth keyboard or mouse that is your only input device, arrange a wired or built-in way to control the PC. Some accessories also remember connections to phones or other computers; disconnect them there if they automatically take over the connection.
When it disconnects only after sleep
Start with fixes 3 and 4. Then wake the PC and watch whether the accessory reconnects on its own. Some battery-powered keyboards and mice display “Not connected” while idle and connect when used; this status by itself is not proof of a fault. If the accessory is unresponsive after waking, update the Bluetooth driver and check the PC maker's firmware updates for your specific model.
When only headphones disconnect
Charge both earbuds and their case, test them close to the PC, and check whether the same headphones stay connected to a phone. If they work elsewhere but drop on this PC, focus on the adapter driver and nearby USB interference. If they drop on every device, use the headphone maker's reset and firmware instructions. If Windows still reports them as connected while audio goes silent, follow the separate audio guide linked above.
When to seek hardware support
Test a second Bluetooth device with the PC and the original accessory with another computer or phone. If several accessories disconnect only from this PC after the supported software checks, contact the PC or adapter maker with the model number, Windows version, driver version, and a description of when drops happen. That evidence helps distinguish a driver issue from a failing adapter.
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