No Sound on Kodi 17.1

Hello,
Been using Kodi and all of a sudden I have no sound. I am running it on widows 10 HTPC and a Sony receiver. Everything was fine but now I have no sound. Kodi is not muted and I get sound from everything else. I have pass-through enabled. I have also noticed that going to the audio settings, the volume and volume amplification are grayed out and I cannot use them.

I also run Kodi on my laptop, and have no problems there. I do not know what else to try.