wss error handshake

Hi,
I have big problem.
I cant connect on wss.
this is what i got on onException:

meteor: exception: java.lang.Exception: com.neovisionaries.ws.client.WebSocketException: Failed to get the input stream of the raw socket: Handshake failed

and this is how I'm connecting to my server:

mMeteor = new Meteor(this, "wss://beholder.com.pl/websocket");

// register the callback that will handle events and receive messages
mMeteor.addCallback(this);

// establish the connection
mMeteor.connect();

best Regards
Mike