presonus studiolive 16.0.2 will not coect to using the VSL and SL remote app

I have the studiolive 16.0.2 mixer coected to my mac. mountain lion. I have an ipad 2 and everything is coected to my router. I have been able to use the sl remote for some time now without any problem for years now. Last week for some reason on my ipad when I click on sl remote and selected my mixer everything was grayed out. When I turned the ipad in landscape mode It said I do not have permissions to control the mixer. So I when to the mac vsl software and click on settings and I did not see the mixer at all. Not sure way. I had backup ipad which is the newest ipad out and I coected it and it worked without any problems. The next week came and I coected to vsl software using the new mac and for some reason it started doing the same as the other ipad. Now neither ipad will work. They will show the mixer in the app and let you coect but say you do not have permission to control the mixer and the vsl software will not show the ipads in the setup tab.

I uninstalled the vsl software and reinstalled same problem. I coect my iPhone and it work but after discoecting it will not coect back to the software. I have also changed out the router with 4 different router but nothing works