Breaking BT has been an issue with Microsoft for a long time. It's possible the "fix" reverts to a older working driver, but if/when Windows Update automatically (re)installs some newer BT driver, it gets "broken" again... USB>BT dongles aren't that expensive, so it may all depend on your "patience factor" having to fix onboard BT connectivity...
Hi, running latest Windows 10 with latest updates, Run Dell PC check and up to date on all drivers. Headphones fully charges and next to my PC. Started a couple of weeks ago losing connection with the headphones: they wouldn't connect although still paired. The only way of fixing was removing the bluetooth device and then adding it again. This worked a few times but now after losing connection and removing the bluetooth device it doesn't see the device after doing "add device". I checked at the same time on my smartphone and it could see the headphones. Have checked all of Microsoft's, Dell's, and Sony's websites and done all the known recommendations for bluetooth device problems to no avail. Any suggestions?
Inspiron 2350 bluetooth problems with Sony MDR-100ABN headphones