HTTP 407 Proxy Authentication Required — What It Means & How to Fix It
Error4xx client error
Overview
The HTTP 407 Proxy Authentication Required status code indicates the client must first authenticate with the proxy server before the request can proceed.
Key Details
- Similar to 401, but authentication is required with a proxy, not the origin server.
- The response includes a Proxy-Authenticate header specifying the authentication method.
- The client should resend the request with Proxy-Authorization credentials.
- This is common in corporate networks that require proxy authentication.
Common Causes
- A proxy server requires authentication and no credentials were provided.
- Proxy authentication credentials are invalid or expired.
- Corporate network proxy enforces authentication for internet access.
Steps
- 1Configure your client with the correct proxy authentication credentials.
- 2Check the Proxy-Authenticate header for the required authentication scheme.
- 3Contact your network administrator for proxy credentials.
- 4Verify proxy settings in your browser or application configuration.
Tags
httpclient-errorproxyauthentication
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ErrorFrequently Asked Questions
It means a proxy server between you and the destination requires authentication. You need to provide valid proxy credentials before the request can proceed.