/diagnostic/ — HTTP 407: proxy authentication
Identify a proxy authentication challenge and check the credentials sent to the proxy.
Troubleshooting. Official documentation · Checked · Review due .
documented capabilities
Proxy- Meaning
- The proxy needs valid authentication credentials.[1]
- Challenge
- The response supplies a Proxy-Authenticate challenge.[1]
- Client response
- The client can retry with an appropriate Proxy-Authorization header.[1]
Billing: Protocol reference; request charges depend on your provider.
Outputs: Diagnostic guidance
checks to make
documentation reviewed- Inspect the proxy's authentication challenge.
- Configure the proxy credentials in your client's proxy settings, then retry.
Requirements & limitations
- A 407 identifies an authentication problem, not its account-specific cause.
We reviewed the linked documentation. No live service connection, checkout or performance test is claimed for this listing.
primary sources
1 references- HTTP Semantics: 407 Proxy Authentication RequiredChecked 2026-09-27