I followed every step in the following mentioned here https://docs.katalon.com/katalon-studio/docs/connect-to-sql-using-windows-authentication.html but still not able to connect.
I installed on my machine :
Here a screenshot of the error
@kazurayam I think you have an answer 
You wrote
localhost:1434
but the dialog displays it wants
localhost:1433
Mind the IP port.
so it was just to test if it will accept another port but also 1433 not working
Is the database process up and running? It might be down, isn’t it?
Though I do not know MS SQL Server at all.
yes , I’m checking if there’s something wrong in sql configuration
Which IP port the DB process is listening to?
Apart from Katalon, you can check connectivity to SQL Server using telnet in commandline.
Looks similar to the following issue:
To connect to SQL Server from another computer, you normally use TCP/IP. If TCP/IP is not enabled, right-click TCP/IP, and then click Enable. If you changed the enabled setting for any protocol, restart the Database Engine. In the left pane select SQL Server Services.
Hi All,
I am able to connect to remote SQL server using SQL Server Management Studio on my machine whereas, when I try the DB connectivity from Katalon Studio, it throws The TCP/IP connection to the host has failed.
Please help.
Regards,
Ram