I am ruing IIS on a load-balanced (two-node) web farm. We are getting sporadic errors:
System.Web.Mvc.HttpAntiForgeryException (0x80004005): The anti-forgery
token could not be decrypted....
I have tried/checked various solutions:
- At the server-wide level, I created explicit validation and decryption keys as described here, and have synchronized them across both nodes.
- The token is only generated once per page to avoid the problem described here.
But the errors persist.
What can I do next to troubleshoot?