Error 18056 can be unwanted noise in certain scenarios

I saw a lot of hits on the web when I searched for the Error message 18056 with State 29. I even saw two Microsoft Connect items for this issue filed for SQL Server 2008 instances: http://connect.microsoft.com/SQL/feedback/ViewFeedback.aspx?FeedbackID=468478 http://connect.microsoft.com/SQLServer/feedback/details/540092/sql-server-2008-sp1-cu6-periodically-does-not-accept-connections So, I thought it was high time that we pen a blog post on when this message…