In C#, Why Was There No Connection Established Due To The Target Machine Actively Refusing It At

This error message typically occurs when you are trying to connect to a service or application on your local machine ( but that service is not running or listening on the specified port (3446).

To resolve this issue, you can follow these steps:

  1. Ensure that the service or application you are trying to connect to is running on your local machine. Check if it is listening on the correct port (3446). If it’s not running, start it.

  2. Verify that there are no firewall or antivirus settings that are blocking the connection. Temporarily disable any firewall or antivirus software on your machine and try connecting again. If the connection succeeds, you may need to adjust the settings of the firewall or antivirus to allow the desired connection.

  3. Check if there are any specific network configurations or restrictions in your environment that prevent the connection. Consult with your network administrator or IT department to verify that there are no such restrictions in place.

  4. If you are trying to connect to a service or application on a different machine (not your local machine), ensure that the remote machine is reachable and the service is running on the correct port. Use appropriate network troubleshooting techniques to verify network connectivity.

By following these steps, you should be able to diagnose and resolve the "No connection could be made because the target machine actively refused it" error in your C# application.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!