Fix Remote Desktop Error 0x80004005: Credential and Network Checks - Cloudflare SSL Full Strict Error: Self-Signed Certificate-Troubleshooting Nginx 502 Connection Refused

Updated 2026-07-28 09:02:03cloud-software
Fix Remote Desktop Error 0x80004005: Credential and Network Checks - Cloudflare SSL Full Strict Error: Self-Signed Certificate-Troubleshooting Nginx 502 Connection Refused
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.