Your company requires all personal and corporate devices to be registered or joined to Azure AD. A remote user, User1, cannot join a personal device to Azure AD from their home network, although they could previously. What should you change to allow User1 to join the device to Azure AD?

The most likely reason User1 cannot join a personal device to Azure AD is that they have reached the maximum number of devices allowed per user. By default, this limit is 50, but it can be configured. Modifying the "Maximum number of devices per user" setting in the Device settings blade will allow User1 to register their new device. Assigning the User administrator role is incorrect because device registration is a user-level permission, not an administrative one. Creating a point-to-site VPN is unnecessary; device registration can occur over the internet. Modifying "Users may join devices to Azure AD" is incorrect because User1 could previously join devices, indicating this setting is already enabled.