KX Developer: Timeout error

When I go to load KX developer from the JupyterLab launcher tab the editor doesn’t load and the connection times out. 

I have tried restarting my machine and have cleared my browser/cache etc and it’s still not working. Could someone please take a look at this?

Many thanks!

How are you trying to load it?

Can you share the command or screenshot what you are calling?

Hi  

Can you try launching JupyterLab from https://kx.com/academy/courses/introduction-developer/

and following the instructions on the README.sh that opens to launch?