Boundary Conditions:
- Computer Make and Model: Acer V3-772G Laptop
- Operating System: Windows Server 2019 Standard (Microsoft Windows Server Version 1809 OS Build 17763.1852)
- Bluetooth Adapter: Asus USB-BT500 (the laptop's Bluetooth adapter is disabled in Device Manager)
- Headset: Sennheiser HD 450BT
When pairing the headset to the system, in Bluetooth Settings only shows the headset as "Connected Music" (Screenshot), and in the Device Manager only the "HD 450BT Stereo" is shown (Screenshot). However, when using my company's laptop (Microsoft Windows 10 Enterprise version 1809 OS build 17763.1577) with the same headset, in Bluetooth Settings I get "Connected Voice, Music" (Screenshot) and in the Device Manager two devices show up: "Headphones (HD 450BT Stereo)" and "Headset (HD 450BT Hands-free)" (Screenshot).
As a result, I can't use the mic on my Windows Server computer, whereas on my company laptop the mic works fine. All drivers are up to date and have been reinstalled multiple times. Any help is appreciated as I ran out of ideas.
Edit: Is there any limitation on Windows Server 2019 for using the Hands-free Profile (HFP) for Bluetooth headsets? As far as I have seen in Microsoft documentation, the Advanced Audio Distribution profile (A2DP) and the A/V Remote Control profile (AVRCP) (both of which work in both laptops) are part of the Wireless Application Protocol (WAP) Kernel Mode Driver, whereas the Hands Free profile (HFP) and Headset profile (HSP) (which do not work in my Windows Server laptop) are part of the Audio Kernel Mode Driver. Could this part of the Windows Bluetooth Stack be missing in Windows Server 2019? (Bluetooth Driver Stack description from Microsoft Docs.)