Fixing Certbot Certificate Renewal Failed Error Code - Resolve Error 0x80070020 in Microsoft Defender-Fix 502 Bad Gateway in Remote Desktop Connection

Updated 2026-06-13 20:50:40browser-issues
Fixing Certbot Certificate Renewal Failed Error Code - Resolve Error 0x80070020 in Microsoft Defender-Fix 502 Bad Gateway in Remote Desktop Connection
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.