Fix Outlook 502 Bad Gateway Error from Antivirus Interference - Command Prompt Port Conflict Troubleshooting Steps-Fix Cloudflare 522 Error: Firewall Blocking Cloudflare IPs

Updated 2026-06-14 06:12:39cloud-software
Fix Outlook 502 Bad Gateway Error from Antivirus Interference - Command Prompt Port Conflict Troubleshooting Steps-Fix Cloudflare 522 Error: Firewall Blocking Cloudflare IPs
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.