Last Updated on December 10, 2023
SSL: WRONG_VERSION_NUMBER is an error that occurs when a client tries to establish an SSL/TLS connection with a server using an unsupported protocol version. This error typically occurs when the server only supports older versions of SSL/TLS, and the client is using a newer version that is not compatible. It can also occur when the client or server is configured to use a different protocol version than the one expected by the other party.
what is SSL: WRONG_VERSION_NUMBER Error?
The “SSL: WRONG_VERSION_NUMBER” error indicates a mismatch between the Secure Sockets Layer (SSL) version supported by your program and the version supported by the server you’re trying to connect to. This error occurs during the SSL handshake process, when the two parties negotiate the encryption protocols they will use to communicate securely.
Here’s why this error happens:
- Incompatible SSL versions: The server might be configured to use an older or newer version of SSL than your program supports. For example, your program might only support SSLv3 and TLSv1, while the server might require TLSv1.2 or higher.
- Outdated libraries: Your program or operating system might be using outdated libraries or frameworks that don’t support the server’s SSL versions.
- Incorrect configuration: The server or client might be incorrectly configured to use a specific SSL version.
Consequences of the error:
The “SSL: WRONG_VERSION_NUMBER” error prevents your program from establishing a secure connection with the server. This can lead to various problems, including:
- Data being transmitted in plain text: Without encryption, your data is vulnerable to interception and eavesdropping.
- Loss of functionality: Certain features or functionalities might be unavailable due to the lack of a secure connection.
- Security vulnerabilities: Outdated SSL versions are more vulnerable to security attacks.
How to Solve SSL: WRONG_VERSION_NUMBER?
1. Update your software:
- Ensure you have the latest versions of your program, operating system, and any libraries or frameworks you’re using.
2. Verify the server configuration:
- Check the server documentation or contact the server administrator to confirm the supported SSL versions.
3. Use the correct port:
- Ensure you’re connecting to the correct port for SSL communication, usually port 443.
4. Bypass the proxy:
- Try connecting directly to the server without going through a proxy server.
- If you must use a proxy, ensure it supports SSL and configure it correctly.
5. Disable firewall or antivirus software:
- Temporarily disable your firewall or antivirus software to see if it’s interfering with the connection.
- If the error disappears after disabling the software, configure it to allow connections on the correct port and for the desired SSL protocol.
6. Specify the SSL version:
- Some programs allow you to specify the SSL version manually. Consult the program’s documentation for instructions on how to do this.
7. Check for specific error messages:
- Look for any additional error messages that might accompany the “SSL: WRONG_VERSION_NUMBER” error. These messages can provide more clues about the root cause of the problem.
- Restart your computer and the server: Sometimes, a simple restart can resolve the issue.
- Clear your browser cache and cookies: This can sometimes help resolve issues related to outdated or cached data.
- Consult online resources: Search online forums and communities for solutions to the specific error message you’re encountering.
- Contact the software or server vendor: If you’re still experiencing issues, contact the software developer or server administrator for further assistance.
By systematically trying these solutions and considering the specific context of your situation, you should be able to identify and fix the “SSL: WRONG_VERSION_NUMBER” error and establish a secure and reliable connection.
Disable SSLv3: If the server only supports SSLv3 and you cannot update the server software, consider disabling SSLv3 on the client side to avoid compatibility issues.
By following these steps, you can troubleshoot and solve the SSL: WRONG_VERSION_NUMBER error, ensuring secure and reliable communication between the client and server.