Hello all, I have been struggling with the 208 error for weeks now and nothing was working, I had tried every single troubleshooting solution out there. Today, I popped off the cover on the headset itself and saw where the cords connect to it and just to check I was pushing on the HDMI and I felt it go in all the way like it was only half plugged in. I can only guess that over time the motion of the cords in the headset can jiggle the connections loose. Once I restarted my computer the headset worked. I don't know if this is your problem but it's worth taking a look at, best of luck!