Error #2002 is a common issue that developers may face when trying to establish a connection to a remote machine. This error message indicates that the target machine is not reachable or the connection could not be established. In order to resolve this issue, we need to follow a step-by-step troubleshooting process that will help you identify the root cause and apply the appropriate solution. This guide will walk you through the process of resolving the 'No Connection Could Be Made' target machine issue.

Table of Contents

• Prerequisites
• Step 1: Verify the Target Machine's IP Address and Port
• Step 2: Check for Firewall or Security Software Interference
• Step 3: Test the Network Connection
• Step 4: Check the Target Machine's Configuration
• Step 5: Restart the Target Machine's Service
• FAQ

Prerequisites

Before you start troubleshooting, make sure you have the following information:

• The target machine's IP address
• The target machine's port number
• Administrator access to both the local and target machines

Step 1: Verify the Target Machine's IP Address and Port

The first step in resolving Error #2002 is to verify that you are using the correct IP address and port number for the target machine. To do this, follow these steps:

1. Open a command prompt or terminal window on the target machine.
2. Run the following command to obtain the machine's IP address:

ipconfig (Windows) or ifconfig (Unix/Linux/macOS)

1. Note the IP address and compare it to the one you are using in your connection settings.
2. Verify the target machine's port number by checking its configuration files or documentation.

If you find any discrepancies, update your connection settings to use the correct IP address and port number.

Step 2: Check for Firewall or Security Software Interference

Firewalls and security software can sometimes block connections to specific IP addresses or ports. To rule out this as a cause of Error #2002, follow these steps:

1. Temporarily disable the firewall or security software on both the local and target machines.
2. Attempt to establish a connection between the machines.
3. If the connection is successful, add an exception or rule to allow connectivity between the machines in your firewall or security software settings.
4. Re-enable the firewall or security software.

Step 3: Test the Network Connection

To ensure that the network connection between the local and target machines is functioning properly, perform the following steps:

1. Open a command prompt or terminal window on the local machine.
2. Run the following command to test the network connection between the local and target machines:

ping <target_machine_IP_address>

1. If the ping is successful, this indicates that the network connection is functioning properly. If not, troubleshoot your network connection or contact your network administrator for assistance.

Step 4: Check the Target Machine's Configuration

In some cases, Error #2002 may be caused by incorrect configuration settings on the target machine. To check the configuration settings, follow these steps:

1. Access the target machine's configuration files or management console.
2. Verify that the machine is configured to accept connections from your local machine's IP address.
3. Ensure that the machine's service is running and configured to listen on the correct IP address and port number.

If you find any issues with the target machine's configuration, update the settings as needed and attempt to establish a connection again.

Step 5: Restart the Target Machine's Service

If the previous steps do not resolve Error #2002, try restarting the target machine's service. This can often resolve connection issues by clearing any temporary problems with the service or network. To restart the service, follow these steps:

1. Access the target machine's management console or command prompt.
2. Stop the service using the appropriate command or interface.
3. Start the service again.

After the service has been restarted, attempt to establish a connection between the local and target machines again.

FAQ

1. What causes Error #2002?

Error #2002 is typically caused by one of the following issues:

• Incorrect IP address or port number
• Firewall or security software interference
• Network connection issues
• Target machine configuration problems
• Target machine service issues

2. How do I find the target machine's IP address and port number?

You can find the target machine's IP address by running the ipconfig command on Windows or the ifconfig command on Unix/Linux/macOS in a command prompt or terminal window. The port number can usually be found in the machine's configuration files or documentation.

3. How can I test the network connection between the local and target machines?

You can test the network connection between the local and target machines by running the ping <target_machine_IP_address> command in a command prompt or terminal window on the local machine.

4. How do I add an exception to my firewall or security software to allow connectivity between the local and target machines?

The process for adding an exception or rule to your firewall or security software will depend on the specific software you are using. Consult the software's documentation or support resources for instructions on how to add exceptions or rules.

5. If I still can't resolve Error #2002, what should I do?

If you have followed all of the steps in this guide and are still unable to resolve Error #2002, consider contacting your network administrator, the target machine's administrator, or the service provider for assistance. They may be able to provide additional troubleshooting steps or identify other issues that are causing the problem.

Related: How to Troubleshoot Network Connectivity Issues

Related: Common Firewall Configuration Mistakes and How to Avoid Them