The only way I can get it to work is if I switch to ASIO and go through speakers. If I try to use headphones with ASIO or any other audio driver it locks ups trying to record or playback.
If it helps:
https://i.imgur.com/DNhuB3H.png
Edit:
I got rid of the prepamp I was using and that seemed to work. Now all the drivers will play through my headphones, but it would be nice to be able to use the preamp. I'm a little curious though why I now if I open kontakt outside of Reaper, Reaper won't make any sound, no matter what drivers I use. Is that normal?