HTTP 202 Accepted vs 511 Network Authentication Required
HTTP 202 (Accepted) is a 2xx Success response, while 511 (Network Authentication Required) is a 5xx Server Error response. 202 indicates that the request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon. In contrast, 511 means that the client needs to authenticate to gain network access. Used by captive portals (hotel/airport WiFi).
Descripción
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.
Cuándo lo verás
For async operations like batch jobs, email sending, or background tasks that take time to complete.
Cómo solucionarlo
Poll the provided status URL or wait for a callback/webhook.
Descripción
The client needs to authenticate to gain network access. Used by captive portals (hotel/airport WiFi).
Cuándo lo verás
When connecting to WiFi that requires login (airport, hotel, coffee shop).
Cómo solucionarlo
Open a browser and complete the captive portal login process.
Diferencias clave
202 is a 2xx Success response, while 511 is a 5xx Server Error response.
HTTP 202: The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.
HTTP 511: The client needs to authenticate to gain network access. Used by captive portals (hotel/airport WiFi).
You encounter 202 when for async operations like batch jobs, email sending, or background tasks that take time to complete.
You encounter 511 when when connecting to WiFi that requires login (airport, hotel, coffee shop).
Cuándo usar cada uno
For 202 (Accepted): Poll the provided status URL or wait for a callback/webhook. For 511 (Network Authentication Required): Open a browser and complete the captive portal login process.