Bluetooth devices randomly disconnect and won't reconnect until reboot

My Bluetooth headphones and mouse keep disconnecting out of nowhere, and once they drop, they won't reconnect until I restart the PC. Sometimes they show up in the device list but fail to connect, other times they disappear entirely.

I've already reinstalled the Bluetooth driver, disabled power saving for the adapter, and removed and re-paired the devices. Still happens. It's a clean install with no third-party tweaks.

Anyone else dealing with this or know what actually fixes it?