Dear Dan
Thanks for reaching out! Welcome to Microsoft Q&A. I'm Haien from Microsoft Q&A.
I can confirm you have done an excellent job of troubleshooting so far! The issue with the Hands-Free AG Audio showing as "Disconnected" while the Stereo profile works is a known incident related to the Bluetooth profile management in Windows 10.
Since the core headset functionality is fine, let's focus on refreshing the Windows services:
- In the Windows Search bar, type "Services." Find the Bluetooth Support Service, right-click it, and select Restart.
- Open Device Manager > Expand Bluetooth and "Sound, video and game controllers." > Right-click your Bluetooth adapter > Properties > Power Management tab > Uncheck "Allow the computer to turn off this device to save power."
- Then, return back Device Manager > Expand Bluetooth and "Sound, video and game controllers." > Right-click your Bluetooth adapter > Update driver > Search automatically.
- If no update, visit your laptop manufacturer's site for the latest Bluetooth driver—download and install
Please keep me updated with anything new that you have tried for each option.
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