Response Codes

Learn about the most common response codes and their meanings when using Dedicated ISP Proxies.

These are the most common response codes you can get while using Oxylabs Dedicated ISP Proxies. If you receive any other response code, please contact your Dedicated Account Manager for more information.

Response	Error Message	Description
407	Proxy Authentication Required	You are accessing proxy through the 60000 port, but you have not provided an authorization header, or your credentials are incorrect.
504	Gateway Timeout	A proxy server timed out, waiting for a response from the target server. It usually takes about 60s.
503	Service Unavailable	Failed to connect to the target server. DNS failure to resolve the target server address.
404	Not Found	The resource specified could not be found.
500	Internal Server Error	We had a problem with our server. Try again later.