Adding AP One Rugged locks me out of B20X Web Admin

Any thoughts as to why when I add the AP One Rugged and confirm everything is working I can’t log in after signing out of the web admin?
B20X is on 8.1.3 s006 build 5006, AP is on it’s latest. I ticked “external” in the AP tab to push the configuration, as I understand it left “ANY” ticked. Again, after making sure everything is working and logging out, I have to wipe B20X and reinstall the most current .conf without the AP saved. I also tried using the specific serial number of the AP but it still locked me out. Rinse, lather, repeat the wipe.
Appreicate any guideance.