error: Validation of viewstate MAC failed

hi,

i got this in my log:

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.

any body have any experiance with this asp.net (nop) error?, recomendations ?

any body know if the source of this error from nop?

Regards,

hi, have a look at this topic

https://www.nopcommerce.com/boards/topic.aspx?topicid=2857

Thanks man,

I already checked the article but their are may causes of this error,

What I was trying to check if there any specific cause to happen with nop? (Due to experience)

In my case I can guess it is a hosting sql related issue.... (Since it happens only once for few minutes)


Regards,