Most cases resolve with a simple fix
A large share of Bluetooth connection problems get solved just by restarting a device or re-pairing. Working through the steps above in order usually reveals the actual cause.
If it's a specific pair of earbuds or a speaker
Some Bluetooth devices hold a limited memory of paired devices, and once that list fills up, new connections can start failing. Resetting the earbuds or speaker itself back to factory settings, then pairing fresh, often clears up problems that persist across multiple devices.
Frequently Asked Questions
Earbuds that connected fine before won't pair with a different computer now.
The earbuds' paired-device memory may be full. Try resetting the earbuds themselves and pairing again from scratch.
The connection stays active, but the audio keeps cutting out.
Bluetooth signals can be affected by walls, metal objects, or interference from other wireless devices, so try removing obstacles and moving the devices closer together.