[BUG] auth.anthropic.com is failing

Resolved 💬 6 comments Opened Apr 6, 2026 by blocsmith-ai Closed May 17, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

auth.anthropic.com returns NXDOMAIN from Google DNS (8.8.8.8)
api.anthropic.com resolves fine to 160.79.104.10

This makes OAuth login impossible in Claude Code CLI.

Location: Utah, USA
macOS
Claude Code version: [run 'claude --version' to get this]

What Should Happen?

please fix your subdomain

Error Messages/Logs

auth.anthropic.com returns NXDOMAIN from Google DNS (8.8.8.8)
api.anthropic.com resolves fine to 160.79.104.10

This makes OAuth login impossible in Claude Code CLI.

Location: Utah, USA
macOS
Claude Code version: [run 'claude --version' to get this]

Steps to Reproduce

attempt to oath login

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

v2.1.92

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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