Indicates that an error occurred while negotiating the security context for a message.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
This exception can happen in the following cases:
While negotiating the initial security context. The exact error depends on the negotiation technology used: either Simple and Protected GSS-API Negotiation (SPNEGO) or TLSNEGO. For more information, see Security Protocols.
While establishing a security session on top of an initial security context.
During key renewal for an existing security session.
Security negotiation errors can occur as part of the Spnego/Sslnego security protocol or as part of the SecureConversation protocol.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.