Investigating and resolving authentication issues
Resolving authentication issues in Azure AD can be tricky, due to the number of authentication methods, sign-in methods, and other configurations that may be put in place.
The first step, when attempting to troubleshoot an issue, is to review any available sign-in logs in the Azure portal. To locate the sign-in logs, navigate to the Azure portal (https://portal.azure.com) and then select Azure Active Directory | Sign-in logs:
Figure 7.30 – Sign-in logs
Each authentication failure generates an individual entry. You can select an entry to see expanded details, as shown in Figure 7.31:
Figure 7.31 – Activity details
The Basic info tab displays high-level information about this particular event. The critical piece of information will typically be listed next to Failure reason, and some expanded explanation may be available in the Additional Details property. In...
