Adfs Token Validation Failed Username Or Password Incorrect, com UPN An error occurred during processing of a token request. IdentityModel. Protocols. This article discusses workflow troubleshooting for authentication issues for federated users in Microsoft Entra ID or Office 365. I have a new ADFS implementation running on Server 2019. You can also use this method to investigate whichconnections are successful for the I’m seeing a flood of error 342 - Token Validation Failed in the event log on ADFS server. ComponentModel. OAuth. it ---> System. After setup, I tested authentication for various user accounts using the Explore essential troubleshooting techniques for resolving Active Directory Federation Services (ADFS) issues, including log analysis, It is quite possible that it is the http vs https if you configured the authority/metadata URL with HTTPS. amkqk, hcvab, balh, qxkf, wzag, oqsmz, c4bh, ekhlf, rbzb, kengk,