I'm trying to send an html form to an aspx page but everything is Ok only for hours. After hours I get an error.
- Authentication of viewstate failed.
1) If this is a cluster, edit <machineKey> configuration so all servers use the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
2) Viewstate can only be posted back to the same page.
3) The viewstate for this page might be corrupted.
How can I fix it? I would like to fill the a valid __VIEWSTATE in my form
Thanks
- Authentication of viewstate failed.
1) If this is a cluster, edit <machineKey> configuration so all servers use the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
2) Viewstate can only be posted back to the same page.
3) The viewstate for this page might be corrupted.
How can I fix it? I would like to fill the a valid __VIEWSTATE in my form
Thanks