IIS ASP.Net Website - ManagedPipelineHandler Error ( An operation was attempted on a nonexistent network connection)

Question

I am experiencing a strange issue. I have an ASP.Net web application that uses Forms Authentication. If I open the log-in page and there is a couple of minutes of inactivity

Answer 1

I know this is an old post but just in case someone runs into the same issue...

We were receiving the same errors when our load balancer appliance was trying to check https for one of our sites. Trying to hit the link via a pc browser worked fine.

• error while reading HTTP response

Failed Request Tracing showed these 2 errors

• BEGIN_REQUEST - The I/O operation has been aborted because of either a thread exit or an application request. (0x800703e3)
• An operation was attempted on a nonexistent network connection. (0x800704cd)

The fix for us was in IIS under "SSL Settings". "Accept" was currently selected for "Client Certificates." Changing to "Ignore" fixed the issue.