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ASP.NET Forums/General ASP.NET/State Management/Validation of viewstate MAC failed. If this application is hosted by...

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. LockedRSS

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Last post Jan 07, 2010 07:49 PM by wulfgarpro