It seems that the server you are using to connect to refuses your attempt to connect. This could be caused by a wrong password, firewall blocking your connection or any other 3rd party software which may interfere with your connection or application. In all cases, first you need to check the firewall. You can do this by entering Control Panel and then access Security Settings > Windows Firewall. Turn it off and try again and see if you get the same response from the serve.
Also, it may be that the server you are trying to connect to is down or in maintenance which makes it impossible to reach.