What is web code 407? Getting a proxy authentication error – how do I fix it? or What is web code 407

what is web code 407? Short answer: proxy gatekeeping.

Long answer: Your traffic’s being routed through a middleman (proxy) that demands login.

Try this:
- Open Control Panel > Internet Options > Connections > LAN Settings
- Uncheck "Use a proxy server."

If that doesn’t work, your network admin might’ve locked things down.