You probably already did this, but if not. Check to see if your ipads are attempting to connect to a different router. There are a lot more out there and many are no longer password protected so if your ipads are set to connect automatically, they might be attaching to the wrong one. Not trying to insult you, but my Wife and I met studying Computer Science, I had a small retail computer shop. Basically been a nerd since about 1976 and sometimes people still miss the obvious. (Me included.) And you will still need to connect to the mixer when on the correct Wifi. Mine seem to require that more now. Seems to me that previously, it would connect up to the active mixer without much help.