Category Archives: IIS

Invalid ViewState on ASP.NET pages

Posted on December 11, 2012 by Amit Rajani

Before some time back, I’ve come across a typical yellow screened ASP.Net error page stating some error related to viewstate authentication failed. [HttpException (0x80004005): Authentication of viewstate failed. 1) If this is a cluster, edit configuration so all servers use the … Continue reading →

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