Fix Windows Update Authentication Failed Error - Fix Windows Update 502 Bad Gateway Due to DNS Configuration-Java JDK Installation Not Working on Mac – Solutions

Updated 2026-06-13 14:32:28developer-tools
Fix Windows Update Authentication Failed Error - Fix Windows Update 502 Bad Gateway Due to DNS Configuration-Java JDK Installation Not Working on Mac – Solutions
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.