*******UPDATE*******
I figured it out and it was weird. As a last ditch effort I swapped the mic cable for the mic and the mic cable for the P2. It worked!
What is weird is that both cables are identical. Sweetwater Pro Co 25ft xlr. The one I was using for the P2 was brand new right out of the box. It does work if I plug a mic in.
I also tried 3 other random xlr cables and they all work with the P2. It is only that brand new cable.