Fix VSCode Debugger Not Attaching to Process - Resolve TCP 443 Already Allocated During Windows Activation-Jupyter Kernel Startup Failure VS Code

Updated 2026-06-13 20:59:26cloud-software
Fix VSCode Debugger Not Attaching to Process - Resolve TCP 443 Already Allocated During Windows Activation-Jupyter Kernel Startup Failure VS Code
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.