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CASsys
New

Validation of viewstate MAC failed

Hi ,

we hosted an asp.net web application and getting an error if we put for idle some time.

Please assist. Error is as follows

Server Error in '/' 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.

2 REPLIES 2
nmah1
New

Did you ever get a resolution to this?  Having the same issue.


@CASsys wrote:

Hi ,

we hosted an asp.net web application and getting an error if we put for idle some time.

Please assist. Error is as follows

Server Error in '/' 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.


 

kamalta
Getting Started

Hi,

 

Have you managed to fix it and if yes, can you share your resolution please?

 

Thanks a lot!