How to Fix Outlook Connection Timeout Error - Windows Defender 0x80070643 Fix for macOS Users-OneDrive Sync Module Missing Error 0x8004de40 Guide
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.