This error drove me nuts until I realized my server was blocking the proxy’s IP.
Check your server’s firewall/security groups to make sure the proxy IP isn’t blacklisted. Also, `tcpdump` is a lifesaver for seeing if the request even reaches the server.
Check your server’s firewall/security groups to make sure the proxy IP isn’t blacklisted. Also, `tcpdump` is a lifesaver for seeing if the request even reaches the server.
