Forms authentication failed for the request. Reason: The ticket supplied has expired.

Question

My event log is flooded with this message:

Forms authentication failed for the request. Reason: The ticket supplied has expired.

I think this happens when people timeout instead of logout.

First of all , this is not an error, it's Type: Information

I don't want this information, how do I stop ASP.NET from logging it?

My application is not web-farmed, and uses a static machine key.

Answer 1

Here's the solution:

<?xml version="1.0"?>
<configuration>
   <system.web>
      <healthMonitoring>
         <rules>
            <remove name="Failure Audits Default" />
         </rules>
      </healthMonitoring>
   </system.web>
</configuration>

Note that this will prevent the logging off all System.Web.Management.WebFailureAuditEvent events, which covers the event range 4005-4011. There is probably a way to just remove 4005, but this solution is good enough for me.

These are the links that helped me:

• http://msdn.microsoft.com/en-us/library/ms998325.aspx
• http://msdn.microsoft.com/en-us/library/ms998306.aspx