Commented Issue: net_io_connectionclosed? [5767]

I sometimes get an application exception: Unable to read data from the transport connection: net_io_connectionclosed.
 
I'm unable to reproduce consistently, and usually retrying the email fixes it.
Comments: ** Comment from web user: peterrow **

This is a very annoying issue. I get the same exception as korggy.
I've tried:
* stop listening, start listening
* quitting smtp4dev, restarting
* restarting IIS and quitting smtp4dev and restarting
... in all cases the very next email my web app attempts to send - bang exception at the point at which it SmtpClient.Send() just like in the stack trace.

Bump this for a fix.
About to try a VS studio restart followed by a machine reboot.