Press "Enter" to skip to content

Failed to Open Loopback Connection

Steve Stedman diagnoses an error:

Recently while working on a SQL Server for a client I came across the following error when I attempted to view the SQL Server logs in SSMS.

From there I decided I needed to track this down, so I attempted to run the sp_readerrorlog stored procedure, which also failed, but it provided more informaiton.

The full error message was:

Msg 22004, Level 16, State 1, Line 0

Failed to open loopback connection. Please see event log for more information.

Msg 22004, Level 16, State 1, Line 0

Error log location not found.

There are several potential solutions, and the one Steve landed on definitely was not my first thought.