Error Messages

Error code	Description
400	Bad request: no host to connect to or incorrect request format, including the URL.
403	Website is blocked by NetNut due to content restrictions
407	Proxy authentication error while accessing the website. Check for valid username or password.
490	Access point is not valid or incorrect – could be no available IPs in the country, non-existent group.
500	Internal server error – retry request at a later time.
502	Bad gateway: Assigned IP is no longer available. Wait for system to assign new IP automatically or switch to new session ID.
503	Proxy error or connection refused by target site.
522	Connection timeout: Proxy server did not receive a response in time. Retry.