"Troubleshooting Network Connectivity Issues: Next Steps"

A.

When troubleshooting network connectivity issues on a server, if replacing the NIC does not resolve the issue, the technician should take the following troubleshooting steps:

1. Re-check physical connections: Verify that all physical network connections are properly connected, and that there are no loose cables or connectors.

2. Check network configuration: Verify that the network settings on the server are configured correctly, including IP address, subnet mask, gateway, DNS servers, and any other relevant settings.

3. Check network hardware: Verify that other network hardware, such as switches, routers, and cables, are functioning properly.

4. Check network services: Verify that network services, such as DHCP and DNS, are running and configured correctly.

5. Establish a new theory of probable cause: If none of the above troubleshooting steps resolve the issue, the technician should establish a new theory of probable cause. This may involve gathering additional information or performing further analysis of the issue.

6. Perform a root cause analysis: Once a new theory of probable cause has been established, the technician should perform a root cause analysis to identify the underlying cause of the issue. This may involve testing different network configurations or hardware, or performing other diagnostic tests.

7. Identify additional changes to the server: If the root cause analysis identifies a specific problem with the server, the technician may need to make additional changes to the server to resolve the issue.

8. Document findings, actions, and outcomes: Throughout the troubleshooting process, the technician should document their findings, actions, and outcomes. This documentation can be useful in future troubleshooting efforts, and can also help identify patterns or trends in network issues.