Dear collegue,
Thank you for posting yours question here at Q&A portal The AADDS113 error typically occurs when there’s a misconfiguration in DNS or network settings for your Microsoft Entra ID (formerly Azure AD) Managed Domain. Since you mentioned no recent changes, I recommend checking the following:
- DNS Configuration: Ensure the Managed Domain’s DNS settings are correctly pointing to Azure-assigned nameservers.
Network Security Groups (NSGs): Verify that NSGs aren’t blocking required ports (e.g., 443, 636 for LDAPS).
- Service Health: Check the Azure Status Page for any ongoing incidents.
Best regards,
Alex
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