We have a properly working SP2013 with ADFS environment on Amazon(EC2). We are using PING Fedrate as our SAML Token Provider. Everything was working fine till yesterday. Every user started getting following error,
The event logs on the ADFS server shows, Event ID 364 with following details,
Encountered error during federation passive request.
Exception details: Microsoft.IdentityServer.Web.UnsupportedSamlResponseException: MSIS7029: The SAML response has content that is not supported. at Microsoft.IdentityServer.Web.FederationPassiveAuthentication.BuildSignInResponseForProtocolResponse(FederationPassiveContext federationPassiveContext) at Microsoft.IdentityServer.Web.FederationPassiveAuthentication.BuildSignInResponse(SecurityToken securityToken)
No patching was done on servers. No new known installations were done. Nothing known seems to change.
Any help would be greatly appreciated.