unable to connect to the server

I am unable to connect to the server. when I try it will show this error

WebSocket connection to ‘wss://10.180.192.20:5905/’ failed:

createWebsocket @ worker.js:24
open

@ worker.js:52
(anonymous)

@ worker.js:80

I am trying to open this on a web page with url.

https://localhost:9999

I have self signed certificate for this to run.

I am trying to get amplifier data for a prgram from server to display on the above mentioned url through the iframe but it is not giving any display. Please help.