Fix 'Windows Cannot Access Shared Folder' After Update - DNS Probe Finished NXDOMAIN with Custom DNS – How to Fix-Firefox Secure Connection Failed Troubleshooting Steps

Updated 2026-07-28 14:24:52office-tools
Fix 'Windows Cannot Access Shared Folder' After Update - DNS Probe Finished NXDOMAIN with Custom DNS – How to Fix-Firefox Secure Connection Failed Troubleshooting Steps
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.