I have deployed an in-house enterprise app to a user and they are unable to open the app. The error is "Unable to Verify App" An Internet connection is required to verify trust of the developer . This app will not be available until verified. The user is connected to the internet via wifi. We also tested with a cellular connection. We are able to browse the internet so, we're sure the device is connected to the internet. The app downloads but, when the app icon is clicked the error appears. The same app deployed to several other users does not produce an error and opens without issue. What is causing this error and how can we fix it?

We have an iOS In-House app that is not installing using the OTA method. The app is no longer able to be installed using the itms-services:// protocol. The last time I tried it was in November 2020 and it worked then. The uri looks like this itms-services://?action=download-manifest&url=https: //dl.dropbox.com/s/abcdef123/manifest.plist . Our Enterprise certificate and profiles are up to date and valid. I was able to install the app to an iphone using Xcode and an Ad-hoc deployment of the app. The dropbox links are all shared and accessible to anyone with the link. When I copy the itms-services uri to Safari on an iPhone I get the popup ... "Open this page in "iTunes"?" with the options Cancel and Open. When I click Open the popup goes away but then nothing else happens. The app does not install. I connected to XCode Console to view the log messages for the device while clicking Open on the popup and the only message that stood out to me was .. Process: itunesstored Message: NetworkRequestQueue: Received unknown action: private PID: 162 Does Apple still support OTA installs for enterprise developers? What else can I do to troubleshoot?

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