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Hi,

i am getting the below error message in my website:

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....

I had inserted the below code in web config file

<pages validateRequest="false" enableEventValidation="false" viewStateEncryptionMode ="Never" />

but still getting the same error.

Please provide the way to get rid out of it.
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