a connection to the notebook server could not be established. the notebook will continue trying to reconnect. check your network connection or notebook server configuration. · Issue #5149 · jupyter/notebook · GitHub
Connecting to a Remote Jupyter Notebook Server Running on Digital Ocean from Microsoft VS Code – OUseful.Info, the blog…
Start A Remote Jupyter Notebook Server On EC2: Complete Setup With DDNS and Sytemd Services - YouTube
How to Install, Run, and Connect to Jupyter Notebook on a Remote Server | DigitalOcean