Thanks for following up and for the detailed explanation.
Since the standard driver and update steps suggested by Q&A Assist have already been tried and the issue persists, please try the following:
Step 1 – Verify LE support in Device Manager
- Press Windows + X > select “Device Manager”
- Expand “Bluetooth”
- Right‑click your Bluetooth adapter > “Properties”
- Go to the “Advanced” or “Details” tab
- Check whether “Low Energy / LE”, “LE Supported”, or similar capability is listed
Some Bluetooth 5.x / 6.0 USB dongles require vendor‑specific drivers to expose LE features correctly. With the generic Microsoft driver, LE may work internally but not be fully reported.
Step 2 – Confirm the device profile actually uses LE
Even if both the dongle and headset are “LE‑capable” on paper:
- Many headsets still use classic Bluetooth profiles for audio
- Bluetooth LE Audio requires:
- Specific LE Audio profiles
- Codec support
- Vendor driver + firmware alignment
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