Claude Code is experiencing a critical login bug affecting Windows users, with reports of Google OAuth authentication timing out after 15,000ms. The issue completely blocks users from accessing the developer tool, rendering it unusable on the Windows platform. Multiple attempts at login consistently fail with the same timeout error.

The error message "OAuth error: timeout of 15000ms exceeded" appears when users complete the Google sign-in flow in their browser and return to Claude Code. The issue affects version 2.1.92 and occurs specifically when using WSL (Windows Subsystem for Linux), suggesting a potential compatibility issue between the application and Windows authentication systems.

This authentication failure represents a significant usability problem for Windows developers who rely on Claude Code for their workflow. The blocking nature of the bug prevents any productive use of the software until resolved. Users are currently without a workaround, leaving them unable to access critical functionality they depend on for development tasks.