UR22 mkii interface audio issues

hey guys, so im having some issues with my UR22. everything works great until i exit my DAW (im using ableton 9.2) then i have no audio, my computer still recognizes it but no sound will come out and it says that the device isnt plugged in, so i unplug and plug back in and it works again, but there’s been 2 times where i have had to completely re-install the drivers. can someone tell me whats wrong and how to fix it please? its becoming a very large annoyance. TIA