Why do I get a 407 Proxy Authentication Required error?

A 407 means the gateway did not accept the request. Check these four things in order.

1. The username and password

Open the proxy in My Proxies, go to the Integration tab and copy the username and password from Verify & Connect again. Paste them without spaces. The username carries your targeting and session parameters, so an edited or cut-off username breaks it.

If a parameter in the username is wrong, the gateway says which one in the X-Proxy-Error response header, for example dependency missing: parameter 'city' requires 'country'.

2. The IP whitelist

If the proxy has Authorized IPs, the IP you connect from must be in the list. Check your current IP and compare it with the list in the proxy's settings.

3. Your balance

When the balance runs out, proxies stop with the No Balance status. Top up on the Billing page and they start again at once.

4. The proxy's status

Only an Active proxy accepts requests. See what each status means.