> For the complete documentation index, see [llms.txt](https://docs.711proxy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.711proxy.com/troubleshooting/unable-to-connect.md).

# Unable to Connect

Your device needs certain conditions to be met in order for the proxy connection to be established.

### First, make sure that you:

● are connected to the Internet

● use correct username parameters

● use a valid proxy host address and a correct port

### Use proxy authentication correctly - please check our guides on how to set up your proxy product:

[Residential Proxies - GB](/proxies/residential-proxies-gb.md)

[Residential Proxies - IP](/proxies/residential-proxies-ip.md)

[Unlimited Proxies - High Bandwidth](/proxies/unlimited-proxies-high-bandwidth.md)

[SOCKS5 Proxies](/proxies/socks5-proxies.md)

[Static Residential Proxies](/proxies/static-residential-proxies.md)

### Additional actions to try:

1\.  Disable your antivirus application (if any).

2\.  If using a remote server, make sure that your Firewall has a pass-through for the port your proxy is operating on.

3\.  Try to connect using a different proxy tool.

4\.  Try to connect using a different network (mobile data, another Wi-Fi network).

5\.  Try to switch to another proxy host. Refer to the [host and port](/proxies/proxy-configuration-parameters/host-and-port.md) guide for available proxy server addresses.

### 📘Still having issues?

If you still have problems with connecting to the proxy, please contact our support channel , provide relevant screenshots of the prompts, your testing commands and parameters, and other materials, and our support team will help you as soon as possible.