An error was discovered processing the <Security> header

A coworker and I were troubleshooting an issue we were having concerning a .NET call to a webservice that used WSE Security. Our client derived from Microsoft.Web.Services2.WebServicesClientProtocol and every time we tried to call the webservice this error would appear:

An error was discovered processing the <Security> header

A quick search on Google returned a quick, easy solution: verify that client and server have their system time in synch (a 5 minute window is allowed). Once the server time (about 6 minutes apart) was fixed the issue immediately disappeared.

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