Error Msg -Unable to connect to SQL Server error - but then connects

Submitted by Stacie_Ray on
Symptom
After upgrading to version 2014.X, an error displays
Unable to connect to SQL Server: "server name\instance name".
Please verify that the SQL Server: "Servername\instance name" is running, and the SQL Browser Service is started.
An Error Occurred: Failed to connect to server ServerName\Instance name

Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.
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