Please help to solve this WebGrid isue "Validation of viewstate MAC failed." ,Thanks..

1 reply. Last post: November 18, 2010 9:46 AM by Handy Surya
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patrick yuanMember

Hi,

I got a problem while browsing WebGrid .NET page, please help to solve it. Thanks.

Detail please see  below message:

Server Error in '/cisweb/wipship' Application.

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.

Server Error in '/cisweb/wipship' Application.

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.

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