AlwaysOn Availability Groups, Listener, Named Instances, Port Numbers, etc. - Microsoft Tech Community
![How to solve SQLServerException: The TCP/IP connection to the host XXX, port 1433 has failed. - Product Knowledge Base - Product Knowledge Base How to solve SQLServerException: The TCP/IP connection to the host XXX, port 1433 has failed. - Product Knowledge Base - Product Knowledge Base](https://kb.sos-berlin.com/download/attachments/17499564/image2017-4-13%2015%3A52%3A32.png?version=1&modificationDate=1492098890000&api=v2)
How to solve SQLServerException: The TCP/IP connection to the host XXX, port 1433 has failed. - Product Knowledge Base - Product Knowledge Base
![How To Setup SQL Server Remote Connection and Why it's not Listening on Port 1433 - NEXTOFWINDOWS.COM How To Setup SQL Server Remote Connection and Why it's not Listening on Port 1433 - NEXTOFWINDOWS.COM](https://i2.wp.com/www.nextofwindows.com/wp-content/uploads/2014/05/2014-05-30_1344.png)
How To Setup SQL Server Remote Connection and Why it's not Listening on Port 1433 - NEXTOFWINDOWS.COM
![Network and Connectivity Requirements for SQL Server Environments - Documentation 5.0 - Delphix Documentation Network and Connectivity Requirements for SQL Server Environments - Documentation 5.0 - Delphix Documentation](https://docs.delphix.com/download/attachments/60492617/MSSQL.png?version=1&modificationDate=1452829557994&api=v2)