Jupyter Kernel Stuck on Connecting: Practical Fixes - Fix Windows Activation: Cannot Connect to KMS Server-Resolve Outlook Profile Registry Hang

Updated 2026-06-13 16:43:51macos-help
Jupyter Kernel Stuck on Connecting: Practical Fixes - Fix Windows Activation: Cannot Connect to KMS Server-Resolve Outlook Profile Registry Hang
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.