How to fix “An address incompatible with the requested protocol was used. [WSAEAFNOSUPPORT (0x273F)]” – Error Code 10047

Overview

In this article, we’ll focus on resolving the issue described as: “An address incompatible with the requested protocol was used. [WSAEAFNOSUPPORT (0x273F)]”. This error, identified by the error code Error Code 10047, can impede your system’s performance, and here’s how you can fix it.

Identifying the Problem

Error Code 10047 typically occurs when an application attempts to connect to a network resource using a protocol that is not supported by the network configuration. This can happen when:
– An application is trying to access a network resource using an outdated protocol.
– The network configuration is incorrect or incomplete.
– A firewall or antivirus software is blocking the connection.

Common Fixes

1. Update Network Adapters and Software

Ensure that all network adapters and applications are up-to-date with the latest drivers and software. This can often resolve protocol compatibility issues.

2. Check Firewall and Antivirus Settings

Verify that the firewall and antivirus software are not blocking the connection. Add exceptions for the applications or network resources that you are trying to access.

3. Disable IPV6

If you are not using IPV6, disable it to prevent protocol conflicts. Go to “Network and Internet Settings” > “Change Adapter Options” > Right-click on your network adapter > “Properties” > Uncheck “Internet Protocol Version 6 (TCP/IPv6)”.

4. Reset Winsock and TCP/IP

Resetting Winsock and TCP/IP can fix corrupted network configurations. Open Command Prompt as administrator and run the following commands:
netsh winsock reset
netsh int ip reset

5. Renew IP Address

Obtain a new IP address from your router or DHCP server. Open Command Prompt as administrator and run the following command:
ipconfig /release
ipconfig /renew

Advanced Troubleshooting

1. Check Network Configuration

Manually configure the network settings to ensure they are correct. Go to “Network and Internet Settings” > “Status” > “Change Adapter Options” > Right-click on your network adapter > “Properties” > Configure IPv4 or IPv6 settings.

2. Use Network Troubleshooter

Windows includes a built-in network troubleshooter that can detect and resolve common issues. Go to “Network and Internet Settings” > “Status” > “Network Troubleshooter”.

3. Contact Your ISP

If the issue persists, contact your Internet service provider (ISP) for assistance. They can help troubleshoot your network connection and resolve any problems causing the error.

Conclusion

Error Code 10047 can be frustrating, but by following these solutions, you can resolve the issue and restore your system to optimal performance. Remember to keep your software and drivers updated, and maintain a secure network configuration to prevent this error from reoccurring. If the issue persists, don’t hesitate to reach out for professional support.