These failures can occur if the AD FS service isn't exposed correctly to the Internet. 2466333 Federated users can't connect to an Exchange Online mailbox.2650717 How to use Remote Connectivity Analyzer to troubleshoot single sign-on issues for Microsoft 365, Azure, or Intune.This situation also causes SSO testing that the Remote Connectivity Analyzer conducts to fail.įor more information about how to run the Remote Connectivity Analyzer to test SSO authentication in Microsoft 365, see the following articles in the Microsoft Knowledge Base: Connect from a remote Internet location.When users sign in to a Microsoft cloud service such as Microsoft 365, Microsoft Intune, or Microsoft Azure by using a federated user account, the connection to the Active Directory Federation Services (AD FS) service fails only when users try to do the following:
