The proxy rejected your credentials. Re-enter the username and password exactly as issued, or supply them where the client expects them, and the 407 clears.
Fix 407 Proxy Authentication Required
Quick answer
A 407 status means the proxy understood the request but demands valid credentials before forwarding it. The target site was never contacted.
Fix 407 Proxy Authentication Required
A 407 status means the proxy understood the request but demands valid credentials before forwarding it. The target site was never contacted.
Likely causes
Verified remedy
Re-copy both credentials from the dashboard. In most clients the proxy credential goes in the proxy URL or proxy-auth field, not the website's login.
Likely causes
Verified remedy
Use the client's dedicated proxy-authentication option, or URL-encode special characters in user:pass@host form. Test with curl -x http://user:pass@host:port https://api.ipify.org to separate proxy issues from client issues.
Likely causes
Verified remedy
Pull the current credentials from the dashboard, update the client, and record the rotation date in your runbook.
Requests return real responses (no 407) and the IP echo shows the endpoint.
A 407 after verified credentials means the client is not sending proxy auth at all: use its explicit proxy-authentication setting or a local forwarding tool that injects credentials.
Facts last reviewed 2026-09-01.
Store credentials in a vault, not a spreadsheet, and rotate on a schedule your team documents. When rotation happens, update every client in the same maintenance window and note it in your runbook.
The proxy wants valid credentials before forwarding your request. It is a proxy-layer rejection, not a website response.
Use the scheme http://username:password@host:port and URL-encode special characters. If your tool has a dedicated proxy-auth field, prefer it.
Pass proxy credentials correctly in a crawler.
View pageRotate proxy credentials without 407 surprises.
View pageThe endpoint type behind the credentials.
View pageAdjacent guide for the same task family.
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