When I am running an Web application, I get an error message
"The TCP/IP connection to the host,port 1433 has failed. Error: "connect timed out. Verify the connection properties, check that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port, and that no firewall is blocking TCP connections to the port."
The TCP/IP is active and enabled and the TCP port defaults to 1433.,But I still get this error message.
Could anyone help me on this?
Thanks. Go to sql configuration manager > expand sql server network configuration > click on your instance > click on tcp/ip with the right button > go to properties > on the top tab click on IP Addresses > remove all "0" (zero) values from TCP dynamic ports > include the value 1433 in all tcp ports > click ok.
Check the TCP/IP services configuration file. Verify that a SequeLink service is listening on the server host at the specified port. Use the netstat -a command on the host to obtain a list of TCP ports that are in the listening state. Check for congestion problems on the server.
Please go to SQL Server Configuration Manager -> expand SQL Server Network Configuration->Protocols for InstanceName, make sure TCP/IP is enabled.
Enable TCP/IP in the SQL ServerExpand the Configuration Tools subfolder and right-click on SQL Server Configuration Manager. Click on Run as Administrator. Select SQL Server Network Configuration and click Protocols for SMTKINGDOM. In the right pane, right-click TCP/IP and click Enable.
Remove All the TCP Dynamic Ports and Add value of 1433 to all TCP Port and restart your SQL Server
I had the same problem while i was trying connect to MSSQL Server remotely using JDBC (dbeaver on debian). After a while, I found out that my Windows Firewall configuration was not set up correctly. So maybe this could help you!
Here's how to configure Windows Firewall to allow network traffic that is related to SQL Server and to the SQL Server Browser service. Four exceptions must be configured in Windows Firewall to allow access to SQL Server:
Create a port exception for TCP Port 1433:
Add a port exception for UDP Port 1434:
Add a program exception for sqlservr.exe:
Add a program exception for sqlbrowser.exe:
Source: http://blog.citrix24.com/configure-sql-express-to-accept-remote-connections/
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