WCF Error - Security processor was unable to find a security header in the message

Posted by quinntheeskimo on Stack Overflow See other posts from Stack Overflow or by quinntheeskimo
Published on 2010-06-10T11:23:32Z Indexed on 2010/06/10 15:22 UTC
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I'm getting what appears now to be a security error in my WCF Service. Originally my error was about a falted state(removed using around client proxy to clear this error), but have found more information through enabling trace.

I have been unable to get my solution running after encountering this error, and even my backup copy now gets the same error. I'm not sure what has caused this to happen, I undone the changes I made (nothing relating to WCF) and still get the same error.

The error from trace is - System.ServiceModel.Security.MessageSecurityException: Security processor was unable to find a security header in the message. This might be because the message is an unsecured fault or because there is a binding mismatch between the communicating parties. This can occur if the service is configured for security and the client is not using security.

I'm not really sure what I need to do to fix this, any help would be usefull. The application was previously working.

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