Hello , I have an account onDiscountasp.net and after upload my project to the server i have the following error "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 have member login in my site and the error occured after login * the login information saved on session * the error occured after serveral navigation * after search on google I have many suggestions all about modify web.config 1- <pages enableEventValidation="false" enableViewStateMac="false" viewStateEncryptionMode ="Never" smartNavigation="false" /> 2- Generate static machine keylike <machineKey validationKey="7908FC5DCDEFED0061EFADBEDD0C9E1814D78CFF439C09B007382B92512BE813C1554ECB151C295D4BB6C046C8410813D4010AB78CE893B6940FBDCC1D13614F" decryptionKey="2EA5F39C0E6A687D788B158CC2EFDE91C0DE745A156D4E74" validation="SHA1" /> after making all this modification the problem still exist :-( Thanks for your help
Try recycle the application and see if it works. also review this post, http://community.discountasp.net/default.aspx?f=24&m=10014 Bruce DiscountASP.NET www.DiscountASP.NET
