Last night, I put in my old GTX 980 Ti in my computer to see if it was working. It worked. I put my new GPU in and immediately noticed that my mouse buttons had stopped working. I managed to get into safe mode and figure it all out, but when I returned to regular Windows 10 I realized my ethernet wasn't working and neither were my audio devices. Right now, getting a connection is my priority, I can fix the audio stuff later. In device manager, the "Intel Ethernet Connection (2) I219-V" says "Windows is still setting up the class configuration for this device. (Code 56)." I put the drivers for the device on a flash drive and it says that the device cannot be found. If I try to do it manually it just says I already have the best drivers for the device. I have literally no clue what to do at this point, any help is appreciated. I've tried all the minor stuff like network reset and Window's troubleshooter.