When Port 9 Ate My Transcript When Port 9 Ate My Transcript A small debugging story about proxies, Codex CLI, and why localhost isn’t always your friend. CopaseticFlow field notes WinError 10061 Codex CLI + Whisper Environment gremlins There’s a particular kind of bug that feels like someone's been messing with your network stack again. You run a script from cmd.exe . It works. You run the exact same script from Codex CLI. It stops with: [WinError 10061] No connection could be made because the target machine actively refused it FFmpeg happily splits the audio. The Whisper API call dies immediately. No 401. No timeout. Just an instant refusal. Translation: that’s not an API error. That’s a socket being rejected. ...