When you initially connected to the Oculus Go through the app, it should have updated the software in the Go to the latest version. Headset version in the iOS app should be 27130.9020.4, and the versions available through the Go directly don't look anything like your 200.2050.0.
I have upgraded to 27130.9020.4, while things are wrose ... only browser have network connection, google.com youtube are okay. but all other Apps even store does not work properly, always popup connection error. frustrate ...