Found a good transformer (1000ma) so enough power there. Unfortunately it didn't make any difference.
BUT, I have found that if I firstly select a preset on the H9 it correctly syncs to the iPad and the iPad then controls/edits the H9.
Rather than trying to firstly select a preset on the iPad, because that always ends in comms failure.
BUT, if I try to select a preset on the iPad the error message appears.
Seems that once a link is established H9 to iPad then that 'sticks' and the preset can be accessed and edited on the iPad. Until a new preset is attempted on the iPad, then the link is lost.
The first thing I did when I received the unit was to update to the new software. I will try to go back a version and see if that works better, then do the update again. By the way, the voucher that came with the unit does that expire at midnight?
Happy New Year