Jupyter Notebook Token Not Working After Update: Fixes - Fix 404 Not Found Error When Using curl in cmd-Fix pip SSL Certificate Verify Failed on Ubuntu

Updated 2026-06-13 18:04:25windows-fixes
Jupyter Notebook Token Not Working After Update: Fixes - Fix 404 Not Found Error When Using curl in cmd-Fix pip SSL Certificate Verify Failed on Ubuntu
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.