I have connected my QC 35 I to the PC using a BT dongle before, and there was no problem. Now, I am have connected my headphones successfully, but the audio comes out of the PC. I don't understand what has changed.
Thank you for taking the time to post. I'm sorry to hear of the audio issues that you've had and would be happy to help!
Firstly, can I ask what you have the Sound/Audio output set to on this computer? If possible, can we ensure that this is set to the headphones/set to the Bluetooth dongle that you are using?
Secondly, can I ask how the Headset appears when you pair to this as Bluetooth? For example, does this appear as "QC35 II headphones", or does this appear with another name/appear with QC35 II "Device"?
Lastly, can I ask if this appears differently in your list from when this had worked previously?
Please get back to me when you can so I can assist further!