[BUG] Pro subscription not recognized — OAuth login redirects to Upgrade page (Windows)

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?

What's wrong?
I have an active, paid Claude Pro subscription (annual plan, billed to mok4da@bellsouth.net), but Claude Code will not recognize it. When I attempt to log in via the "Claude account with subscription" flow, the OAuth link opens directly to an "Upgrade to Max or Pro" page — there is no login/sign-in option, and I cannot proceed to authenticate.

Environment:

• OS: Windows
• Claude Code version: 2.1.218
• Install method: native installer (irm install.ps1)
• ANTHROPIC_API_KEY: not set

Steps to reproduce:

1. Fresh native install of Claude Code on Windows
2. Fixed PATH issue (added C:\Users\home\.local\bin per install output)
3. Ran claude in a new PowerShell window
4. Selected subscription login (not API key)
5. Browser opens directly to "Upgrade to Max or Pro" page — no login option present

Troubleshooting already attempted:

• Full PowerShell restart (multiple times)
• Confirmed Pro subscription is active and paid (invoice confirms, billed June 30 2026 – June 30 2027)
• Verified no ANTHROPIC_API_KEY environment variable is set
• Attempted OAuth link in fresh browser session logged into the correct account (mok4da@bellsouth.net)

Expected behavior:
Claude Code should recognize the active Pro subscription and allow login without prompting to upgrade.

What Should Happen?

it should let me sign in

Error Messages/Logs

goes straight to upgrade page.

Steps to Reproduce

welcome to Claude Code

c to copy

place in browser

straight to upgrade page

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

1. 1. 218

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_