I have that same type of problem I updated my i-pads OS to 14.3 and it shows the Airstream DMX bridge connected to wifi but will not work or respond withend the ADJ Pro app. My other i pad has 13.7 OS and it works fine.
The I-pad with 14.3 update is a 7th Gen & the other Ipad with 13.7 is a 6th Gen.