> ## Documentation Index
> Fetch the complete documentation index at: https://help.decodo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Proxy Connection Failed

> A proxy connection requires a few conditions to be met before it can be connected to your device.

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**](https://help.decodo.com/docs/residential-proxy-quick-start);
  * [**Mobile proxies**](https://help.decodo.com/docs/mobile-proxy-quick-start);
  * [**Static Residential Pay/GB proxies**](https://help.decodo.com/docs/isp-pay-per-gb-proxy-quick-start);
  * [**Static Residential Pay/IP proxies**](https://help.decodo.com/docs/isp-pay-per-ip-proxy-quick-start);
  * [**Dedicated Static Residential proxies**](https://help.decodo.com/docs/dedicated-isp-proxy-quick-start);
  * [**Datacenter Pay/GB proxies**](https://help.decodo.com/docs/datacenter-pay-per-gb-proxy-quick-start);
  * [**Datacenter Pay/IP proxies**](https://help.decodo.com/docs/datacenter-pay-per-ip-proxy-quick-start);
  * [**Dedicated Datacenter proxies**](https://help.decodo.com/docs/dedicated-datacenter-proxy-quick-start);
* using proxy **authentication** correctly. Please check out our articles for each proxy to make sure:
  * [**Residential proxy authentication**](https://help.decodo.com/docs/residential-proxy-authentication-methods);
  * [**Mobile proxy authentication**](https://help.decodo.com/docs/mobile-proxy-authentication-methods);
  * [**Static Residential Pay/GB proxy authentication**](https://help.decodo.com/docs/isp-pay-per-gb-proxy-authentication-methods);
  * [**Static Residential Pay/IP proxy authentication**](https://help.decodo.com/docs/isp-pay-per-ip-proxy-authentication-methods)
  * [**Dedicated Static Residential proxy authentication**](https://help.decodo.com/docs/dedicated-isp-proxy-authentication-methods);
  * [**Datacenter Pay/GB proxy authentication**](https://help.decodo.com/docs/datacenter-pay-per-gb-proxy-authentication-methods);
  * [**Datacenter Pay/IP proxy authentication**](https://help.decodo.com/docs/datacenter-pay-per-ip-proxy-authentication-methods);
  * [**Dedicated Datacenter proxy authentication**](https://help.decodo.com/docs/dedicated-datacenter-proxy-authentication-methods);
* receiving a connection error rather than an `HTTP` code from a website. See more at [**HTTP Error Codes**](https://help.decodo.com/docs/https-error-codes).

***

Other options to try:

* Disable any anti-virus applications you have.
* If using a remote server, ensure that the firewall allows 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.).

***

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