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FTP anonymous login disabled

Why FTP anonymous login fails and how to configure server access policies.

Diagnose this automatically

Verify whether authentication is the actual failure point.

terminal
npx ftpmonitor check --protocol ftp --host ftp.example.com --port 21 --username user --password pass
Shareable output
terminal
npx ftpmonitor check --protocol ftp --host ftp.example.com --port 21 --username user --password pass --format slack --copy

Prefer the browser? Run the same check on the homepage.

Some FTP servers disable anonymous access for security reasons.

Common causes

  • Anonymous access disabled
  • Server requires authenticated user
  • Account policy restrictions

Fix checklist

  1. Create authenticated FTP user.
  2. Enable anonymous access if required.
  3. Verify server policy configuration.
FTPMonitor Help

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Live troubleshooting help for an urgent or unusually complex FTP, FTPS, or SFTP problem.
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  • ECONNREFUSED on port 21 — Why FTP port 21 returns connection refused, and how to isolate service-down vs firewall vs wrong host/port.
  • FTP connection refused — Why FTP servers refuse connections and how to diagnose port, service, and firewall issues.
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