No problem with the control. The problem was with the WiFi. At the time I was using the internal WiFi with the stock antenna. In spite of the distance from my iPad to the mixer only being through a Mojo Organ and about 3 feet in a club environment, it was dropping out as I was lowering the gain and reconnecting to reflect the original gain setting. I put a better antenna on and the problem went away immediately. I really can't recommend that anyone buying this mixer depend upon the internal WiFi. If it works for you, good, but I know that My mixer's internal WiFi is weak. I've been running an Airport Express II and generally using the 5 GHz band with not a bit of trouble. And with that minor change, I love this mixer and the software. (And good WiFi routers can be had for less than $50.)