Troubleshooting Center

Step-by-step fixes for the errors developers hit when connecting Claude Code or Codex CLI to DeepSeek, OpenRouter and other providers — with verification commands for each fix.

401 Unauthorized

Fix this error in Claude Code and Codex CLI — causes, step-by-step fixes, and verification commands.

404 Not Found

Fix this error in Claude Code and Codex CLI — causes, step-by-step fixes, and verification commands.

Model Not Found

Fix this error in Claude Code and Codex CLI — causes, step-by-step fixes, and verification commands.

Rate Limit / Insufficient Quota

Fix this error in Claude Code and Codex CLI — causes, step-by-step fixes, and verification commands.

Network Error / Connection Failed

Fix this error in Claude Code and Codex CLI — causes, step-by-step fixes, and verification commands.

Timeout / Request Timed Out

Fix this error in Claude Code and Codex CLI — causes, step-by-step fixes, and verification commands.