TestFlight is Currently Unavailable Message

Question

I am getting message \"TestFlight is Currently is Currently Unavailable. Try again later\" when trying to install from TestFlight app. My outside testers get a message \"[Ap

Answer 1

Had to disable 'Use cellular data' option in Settings for Testflight. I did not have cellular data internet and was connected via wifi. Looks like testflight tried to use cellular data with that option being on.