Hello, i tried to implement a ADFS+MFA solution, so i am able to login to Azure Portal with my on-prem users
I got adfs working alright but whenever i enable Multi-factor authentication (MS Phonefactor) on ADFS i get the following error. Where should i look to troubleshoot?
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Encountered error during federation passive request.
Additional Data
Protocol Name:
Saml
Relying Party:
******
Exception details:
System.NullReferenceException: Object reference not set to an instance of an object.
at pfadfs.AuthenticationAdapter.IsAvailableForUser(Claim identityClaim, IAuthenticationContext context)
at Microsoft.IdentityServer.Web.Authentication.External.ExternalAuthenticationHandler.IsAvailableForUser(Claim identityClaim, IAuthenticationContext authContext)
at Microsoft.IdentityServer.Web.Authentication.External.ExternalAuthenticationHandler.ProcessContext(ProtocolContext context, IAuthenticationContext authContext, IAccountStoreUserData userData)
at Microsoft.IdentityServer.Web.Authentication.External.ExternalAuthenticationHandler.Process(ProtocolContext context)
at Microsoft.IdentityServer.Web.Authentication.AuthenticationOptionsHandler.Process(ProtocolContext context)
at Microsoft.IdentityServer.Web.PassiveProtocolListener.OnGetContext(WrappedHttpListenerContext context)
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Setup:
2 DC (ADFS)
2 MFA (Proxy + MFA Server)
1 DirSync server