Hi Pynkvortex,
Thanks for getting back to us!
As you say that you've done more or less everything including new headset, I'd say it may be worth with another format, and re-installation if you're up for it. If the issue persists after that, the issue is Hardware related, and may have to do with the USB Ports, or the Motherboard.
What you can do, is to preform a stress test on the PC, in order to see if that can provide enough data on what it is that is going on when it's freezing and/or disconnecting. The manufacturer of your motherboard may have software available for download, that can preform tests on your hardware.
Please let me know if there is anything else we can do for you, or if you have any further questions.
Have a great evening! 😊
Best regards
Ramses