I get an Error 208 and can't get VIVE into direct mode

I had my VIVE previously setup and working, but I moved it into a better position and now it isn't working. Nothing was damaged in this transfer and everything has been plugged in as before. The only thing that's changed AFAIK is the recent software update, but that only changed the error I was getting from the headset (before it would turn green and do the tracking, but wouldn't display anything).



I have a 980 ti and have tried all the various display and hdmi ports. Everything else is up and running except the headset which has a red light and gives Error 208.



I try to get it into Direct Mode (it currently is not), it asks if I wish to continue but when I say yes it does nothing. I've tried running as Administrator. I've tried rebooting the headset, uninstalling and reinstalling USB, even uninstalling entire app and restarting. Since the update the VIVE shows up as a monitor in my NVIDIA config. If I set it as an extended display the VIVE's light will turn green and one eye will display the desktop, but SteamVR still won't consider it connected.



I've run out of ideas and am hoping I don't have to wait for an update to fix this. If anyone has any pointers they'd be much appreciated.