How to fix “No service is operating at the destination network endpoint on the remote system. [ERROR_PORT_UNREACHABLE (0x4D2)]” – Error Code 1234

Overview

In this article, we’ll focus on resolving the issue described as: “No service is operating at the destination network endpoint on the remote system. [ERROR_PORT_UNREACHABLE (0x4D2)]”. This error, identified by the error code Error Code 1234, can impede your system’s performance, and here’s how you can fix it.

Identifying the Problem

What is Error Code 1234?

Error Code 1234 is an error that occurs when a network request cannot be completed because the destination port is unreachable. This can be caused by a variety of factors, including:

• Firewall: The firewall may be blocking the connection.
• Port settings: The port may not be open on the destination computer.
• Network issues: There may be a problem with your network connection.

Symptoms of Error Code 1234

Common symptoms of Error Code 1234 include:

• Unable to connect to a specific website or service.
• Slow or intermittent network performance.
• Error messages when trying to use a network application.

Common Fixes

Check your firewall settings

1. Open the Control Panel.
2. Search for “firewall.”
3. Click on “Windows Firewall.”
4. Click on “Advanced settings.”
5. In the “Inbound Rules” section, look for a rule that allows traffic to the port that you are trying to connect to.
6. If there is no such rule, create one.

Open the port on the destination computer

1. On the destination computer, open the Control Panel.
2. Search for “firewall.”
3. Click on “Windows Firewall.”
4. Click on “Advanced settings.”
5. In the “Outbound Rules” section, look for a rule that allows traffic to the port that you are trying to connect to.
6. If there is no such rule, create one.

Check your network connection

1. Make sure that your computer is connected to the network.
2. Try restarting your router and modem.
3. If you are using a wireless connection, make sure that you have a strong signal.

Advanced Troubleshooting

Use a network analyzer

A network analyzer can help you to identify the source of the problem. By capturing and analyzing network traffic, you can see which packets are being sent and received, and you can identify any errors that may be occurring.

Reset Winsock

Winsock is the Windows socket API, which is used by network applications to communicate with each other. Resetting Winsock can sometimes fix problems with network connectivity.

To reset Winsock, open a command prompt and type the following command:

netsh winsock reset

Reinstall the network adapter drivers

The network adapter drivers are software that allows the network adapter to communicate with the computer. Reinstalling the drivers can sometimes fix problems with network connectivity.

To reinstall the network adapter drivers, open the Device Manager and find the network adapter. Right-click on the adapter and click on “Uninstall.” Then, click on the “Scan for hardware changes” button and Windows will automatically install the latest drivers for the adapter.

Conclusion

Error Code 1234 can be a frustrating problem, but it can be fixed by following the steps outlined in this article. Be sure to try the common fixes first, and if those don’t work, move on to the advanced troubleshooting steps.

To prevent Error Code 1234 from occurring in the future, make sure that your firewall is configured properly and that your network adapter drivers are up to date. You should also regularly check for and install any Windows updates.