VIP Integration for ADFS error event ID 105, An error occurred loading an authentication provider.
Article ID: 411094
Updated On:
Products
Issue/Introduction
If you have deployed AD FS as an AD FS farm you may see multi-factor authentication failures with the following error:
An error occurred loading an authentication provider. Fix configuration errors using PowerShell cmdlets and restart the Federation Service.
Identifier: VIPAuthentication
ProviderWindowsAccountName
Context: Proxy TLS pipeline
Additional Data Exception
details: The authentication method SymcVIP.AuthenticationAdapter WindowsAccountName, VIP AuthenticationProviderWindows AccountName, Version=9.8.0.1,Culture=neutral, PublicKeyToken=ec9e8e47b18c9ce could not beloaded. Could not load file or assembly 'VIPAuthenticationProviderWindowsAccountName,Version=9.8.0.1, Culture=neutral, PublicKeyToken=ec9e8e47b18c9ce' or one of its dependencies. The system cannot find the file specified.
With event ID 105
Resolution
This failure occurs when different versions of the VIP integration module for AD FS are installed in computers in your AD FS farm.
Update all instances of the VIP integration module for AD FS to the same version for all computers in the AD FS farm.
Download the latest version of the VIP integration module for AD FS from the Accounts tab of VIP Manager (Download Files > Third_Party_Integrations > Plugins > Active_Directory_Federation_Services.zip)
Feedback
