I haven’t had any trouble connecting. And we use it with both an iPad Pro and a cheep Kindle Fire that I rooted. It’s more the UI on the Behringer app that’s the problem.I've been working with some guys that run an X-Air 18 with an Ipad II and an external router. The iPad would continuously drop connection no matter how close I was to the router (always line of sight). The touch interface just wasn't ideal for me but made it work. We tried different routers, different channels and it was always the same. No matter if it was a very rural gig or a downtown gig.
The guy who owns the system showed up with a Windows based laptop on the last gig and had me try it. Not one single issue the entire gig. Maybe the iPad II couldn't keep up? I mean the PC proves it wasn't the routers. We have a couple of gigs over the weekend. We'll see how the PC does.
Have you guys seen anything like that with your ipad? Which iPad are you running?
We’re using the built in AP too.