My microphone works - Windows recording device shows it as working.

Then I start Teamspeak and do a test, in options, and it works.

Then I connect to a server, and my microphone stops working, in TS and everywhere else, until (as far as I can tell) I reboot the computer.

Then it works until I start Teamspeak and connect.

Running Windows 10, with Bose QC35 bluetooth headphones.