i am getting server error ?

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actually i have opened my website and kept idle for one hour, when i click any button i am getting this error guys please help me . . when i refresh and run its working properly . .

C#

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.

Posted 24-Jul-14 22:36pm

u mani

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 25-Jul-14 5:17am

There are many solutions you can get from internet. Have you tried anything yet?

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Prakriti Goyal · Answer 1 · 2014-07-24T22:42:00

Solution 1

Try this,,

ASP.NET machineKey Generator[^]

Validation of viewstate MAC failed.[^]

<machinekey validationkey="xxx" decryptionkey="xxx" validation="SHA1" decryption="AES" />

Hope this helps you :)

Posted 24-Jul-14 22:42pm

Prakriti Goyal