The client cannot connect to the server.

Currently it is required that the client and the server use the same major version number so that a connection between client and server can take place.

This means that you cannot connect to a version 12 server with a version 11 client.

More articles dealing with connection problems:

• SSL connection error: handshake failure
• Error Message: Socket Error 10061 Connection Refused
• When connecting to the server I get the error: "Socket Error #10060 Connection Timed Out".