@admintarou Thanks for posting in our Q&A.
We should collect the logs when the error occurred, and then see what settings caused Azure does not allow me to sign in through the proxy. Then compare this setting to see the specific settings of the profile we sent to the device from Intune. It is not necessarily the profile issued from Intune that caused this problem.
Xcode is the debug log of the OS level of IOS. We don’t know how much information it can collect, but according to our experience, some information will be collected.
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