Error
Error Code:
63
MySQL Error 63: Unknown Protocol Option
Description
Error 63 indicates that the MySQL server received an unrecognized or invalid option during a protocol handshake or connection attempt. This typically occurs when a client application tries to establish a connection using parameters the server doesn't understand for the specified communication protocol.
Error Message
Unknown option to protocol: %s.
Known Causes
3 known causesInvalid Client Connection Options
The client application is attempting to connect to the MySQL server with an option or parameter that is not supported or recognized by the server's communication protocol.
Protocol Mismatch or Incompatibility
The client application or library is using a protocol version or specific options that are incompatible with the MySQL server's configured protocol version.
Typographical Error in Configuration
A simple typo or incorrect syntax in the client's connection string or configuration file can lead to an unrecognized option being sent to the server.
Solutions
Coming SoonGeneral Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service