Fix Chrome Access Violation Error on Windows 7 - Troubleshooting Nginx Upstream Connection Refused Port 80-DNS Cache Clear Guide for ERR_NAME_NOT_RESOLVED

Updated 2026-07-28 06:58:33cloud-software
Fix Chrome Access Violation Error on Windows 7 - Troubleshooting Nginx Upstream Connection Refused Port 80-DNS Cache Clear Guide for ERR_NAME_NOT_RESOLVED
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.