This is more of an inquiry to see if others are experiencing similar issues.
I have installed ISE 2.2 from scratch for our new deployment and went live on May 1st with a Guest Hotspot portal only. I have approximately 1100 - 1300 guest users connected at any given time.
The issues are related to different mobile devices not being able to complete the AUP acceptance. It seems that random Samsung devices cannot press the "Accept" button. When they click the button, it does nothing. Random iOS devices will get an "Error HTTP 500" page after clicking the "Accept" button.
The affected devices will not work regardless of how many times they are disconnected and reconnected. It also doesn't seem to be a large number of devices, maybe 1-2% at most. It is completely random and I cannot replicate it on any of my test devices.
Has anyone else had issues like this or am I alone? I feel like I should not have started with ISE 2.2 as it is so new 
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