I paired my Bluetooth speakers with my computer but no sound comes out or I can't reconnect

Check the following.

• Check that the computer volume is not muted.
• Check that the wireless speaker you want to connect is set as a playback device.
  In the Sound settings of the computer, check that the speaker is set to Default Device.
• Restart the music software.
• Turn off the Bluetooth function of the computer, and then turn it on again.
• Delete the device information from the computer, and then pair with the speaker again.
  For details, refer to: How to delete the Bluetooth device information of your playback device

NOTE: Operation is not guaranteed on all computers including self-made computers.