Unable to connect proxies

For a start, please ensure that you are:

• connected to the internet;
• have connection ports open;
• not connected to another proxy or VPN;

• using the correct proxy address and a valid port (endpoint:port). Please check out our guides on how to quickly set up proxies per product here:
  • Residential proxies;
  • Mobile proxies;
  • Shared ISP pay per GB proxies;
  • Dedicated ISP pay per IP proxies;
  • Shared Datacenter pay per GB proxies;
  • Shared Datacenter pay per IP proxies;
  • Dedicated Datacenter proxies;

• using proxy authentication correctly. Please check out our articles for each proxy to make sure:
  • Residential proxy authentication;
  • Mobile proxy authentication;
  • Shared ISP pay per GB proxy authentication;
  • Dedicated ISP pay per IP proxy authentication;
  • Shared Datacenter pay per GB proxy authentication;
  • Shared Datacenter pay per IP proxy authentication;
  • Dedicated Datacenter proxy authentication;

• receiving a connection error rather than an HTTP code from a website. See more at HTTP(S) Error codes.

Other options to try:

• disable anti-virus applications if you have any;
• if using a remote server, make sure that the firewall has a passthrough for the proxy port you are using;
• different endpoints;
• different proxy tools for your connection;
• a different network (mobile data, mobile hotspot, another Wi-Fi network, etc.).