konqueror gave me this:
The requested operation could not be completed

Connection to Server Refused

Details of the Request:

URL: https://192.168.0.250:6080/vnc_auto.html?token=51cdd3d1-7044-4f2d-9112-7bc718a1dc0b&title=spacewalk(0de4c005-bb32-4457-befa-a158fb5546e5)
Protocol: https
Date and Time: Monday, April 20, 2015 07:15 AM
Additional Information: 192.168.0.250: SSL negotiation failed
Description:

The server <strong>192.168.0.250</strong> refused to allow this computer to make a connection.

Possible Causes:

The server, while currently connected to the Internet, may not be configured to allow requests.
The server, while currently connected to the Internet, may not be running the requested service (https).
A network firewall (a device which restricts Internet requests), either protecting your network or the network of the server, may have intervened, preventing this request.
Possible Solutions:

Try again, either now or at a later time.
Contact the administrator of the server for further assistance.
Contact your appropriate computer support system, whether the system administrator, or technical support group for further assistance.