Check these common causes first:
- Wrong credentials: copy the username and password again from the Proxy Manager. The username changes when you change targeting.
- No bandwidth left: check your balance in the Proxy Manager or on the Top Up page.
- Blocked website: financial, government and other high-risk sites are blocked. See blocked websites.
- Closed port: only ports 80 and 443 are open by default.
- UDP traffic: only Rotating Residential and Rotating Mobile proxies carry UDP, on ports 443 and 53 by default. On other proxy types, use HTTP, HTTPS or SOCKS5 over TCP. If UDP doesn’t connect on a session, start a new session ID. See connection protocols.
- Targeting too narrow: a small city combined with a specific ISP may have few or no IPs available. Try a wider area.
Use Test proxy settings in the Proxy Manager to check the connection. If you use Claude, ChatGPT or Cursor, the ProxyEmpire MCP server can check your package, credentials, remaining bandwidth and the pool in one question. If it still doesn’t work, contact us on the 24/7 live chat or at [email protected], and tell us the proxy type, the target website and the error you see.