Connection Failed: failed to connect to kernel when set up in a remote server (websocket related) · Issue #4757 · jupyter/notebook · GitHub
Kernel Error – Jupyter Notebook – Tech……Answers
python - How does one connect a Jupyter Kernel to VS Code if one does not connect automatically? - Stack Overflow
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
Help] Problem using Jupyter notebooks "Connecting to kernel: Python 3.8.3 64-bit" : r/vscode
Jupyter notebook not connecting to kernel · Issue #550 · microsoft/vscode- jupyter · GitHub