I am a new user and thus far have been unable to successfully try any courses. I can load the webpage and the instructions, and get to click through all the 14 little pop ups. After that, no amount of waiting will get the rest of the terminal, simulation, and then the notebook also loses connection.
I looked at other issues, and it seems to apply to all courses I have tried, and I am on a stable, wired connection.
If this has anything to do with the “non-default” port comments (I am behind a firewall), IT requests more precise information so that we can implement a fix.
I see…Hmmm… I’m not the expert in Ports , but it seems some of the most important are NOT open , like the 80 for example. Actually you have very few ports open there I’m affraid. Let me ask around if someone has any solution.
the services on both platforms run in different non-default ports, but we have nginx that proxies all services to a common https (port 443) port.
Given that all firewalls allow ports 443 and 80, then I think your firewall is blocking WebSocket Connections. We use WebSockets extensively. Could you check that with your IT team?
I think they are allowing http:// and https:// protocols, but now allowing ws:// or wss://, which are used for WebSocket connections.
