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Proxy error codes

What each one means, and which ones are not your fault.

The ones you will actually see, and which are not your fault.

CodeMeaningWhat to do
407Authentication refusedRe-copy the password whole. This is the number one cause.
403The target refused, not usTry a more disguised pool.
429Too many requestsSlow down, or lower your concurrency.
502 / 504The gateway got no answer from the targetRetry. If it persists, the target is the problem.

Not your fault

403 and 502 come from the destination site, not from the proxy. Changing your password or port will not help — what needs to change is the pool, or how fast you are hitting it.

Your quota when things fail

A request refused for hitting the connection limit does not spend quota. A request that reaches the target does spend quota, even when the target answers with an error.