FTP

421 Service Not Available

Service not available, closing control connection. The server is shutting down or has reached its connection limit and cannot serve this request.

Quand vous voyez ce code

When the FTP server is overloaded, shutting down for maintenance, or has reached its maximum number of concurrent connections.

Comment résoudre

Wait a few minutes and try reconnecting. If persistent, check if the server has a connection limit and whether your IP is being rate-limited.

Spécification

Voir RFC / Spécification →

Comparaisons

Guides

Glossaire