Claude Code users on Windows can't log in. A bug report on GitHub (issue #44257) documents OAuth timeout errors that completely block access to Anthropic's coding assistant. The error message reads "OAuth error: timeout of 15000ms exceeded" and occurs during Google's authentication flow. Users report retrying multiple times with no success.
HN commenters think they've spotted a pattern. Several speculate that Claude Code users share a centralized compute pool that's overwhelmed right now. Some point to increased demand, possibly driven by OpenAI's recent Department of Defense partnership announcement pushing users toward alternatives. Anthropic's status page shows all systems operational, but users report hours-long lockouts, a disconnect that Claude Code outages have previously exposed.
Claude Code's auth setup doesn't help matters. It relies entirely on Google OAuth with a fixed 15-second timeout and no fallback. Compare that to GitHub Copilot, which uses GitHub's mature authentication infrastructure with retry mechanisms built through years of enterprise use. Cursor caches tokens locally so you stay logged in during network hiccups. Tabnine and Sourcegraph Cody offer enterprise SSO through SAML and OIDC, bypassing consumer OAuth entirely. Claude Code has none of these safeguards.
This incident raises real questions about relying on cloud-only developer tools. When your coding assistant requires a working OAuth flow to a third-party provider with no offline mode, you're one timeout away from dead tooling. Widespread outages in the past have underscored the risks of these single-provider dependencies. Some HN commenters suggest Anthropic may be turning to model distillation to reduce compute load, though that could explain the response quality degradation some users have noticed.