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Chrome Sync Migration Troubleshooting Steps - How to Resolve Outlook Error 0x80040115-MongoDB Auth Failed After Upgrade? Here's the Fix

Updated 2026-06-14 00:17:26windows-fixes
Chrome Sync Migration Troubleshooting Steps - How to Resolve Outlook Error 0x80040115-MongoDB Auth Failed After Upgrade? Here's the Fix
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.

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