Q Mix for IOS crashes constantly

Hi I'm having trouble using Q mix rev 5508 ruing on IOS 10.3.2 on iPhone 7s and iPhone 7

Working with Studio Live 16.4 mixer ruing current version of Universal Control for Mac OS on Mac OS Sierra Current version.

App seems to crash constantly or won't coect to mixer as in mixer won't show up as an option when app is launched. I have tested router confirmed iPhones are on the proper network etc.. Tried relaunching and restarting etc... same problem.

Router seems to work as I can coect an iPad ruing SL Remote to the same system with no problems. Just seems to be with Q mix

Any suggestions??