NAVICAT connection error in SQL Server report 08001

After installing SQL Server, use Navicat to connect to the server, but the dead and alive all give me error 08001 errors

Finally because I have modified the port, the format has been using the [IP address]:[Port], the actual [IP address],[Port]

Combined with the online specific summary of the idea of the wrong line:
First, let's check to see if the service is working correctly ↓

Then, check the settings on the port ↓

Note here, generally speaking, SQL Server port is set to 1433, but I am here for security, decided to do not follow the pattern of cards, modified the port, modify the port to remember the firewall open port

NAVICAT connection error in SQL Server report 08001