Response from Poloniex customer service about my IP being banned #useful

Hi,

You may be temporarily blocked by Cloudflare if your API calls create many client errors (any HTTP 4xx code such as invalid nonce, insufficient balance, etc). Did you see any such errors before you were blocked?

Please note that while re-trying a timed out call is fine, if you re-try an unanswered API call after less than 80 seconds with the same API key, the earlier call may still go through however its nonce value collides with the second call, causing an error 422. If your client already dropped the request, you would not actually see the error, but nonetheless it occurred. If you cause too many of these errors Cloudflare may temporarily block you.

In terms of a solution this depends on your setup but I could suggest using a set of rotating API keys to avoid nonce errors, or use a time-out of 80 seconds or higher.

Best regards, Poloniex Support

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