ChatGPT/Codex desktop fails to start new chats on macOS after a DeviceCheck error
mervinweber · ghdev · 2026-07-16
ChatGPT/Codex desktop breaks new chat on macOS with a DeviceCheck error
After updating the desktop app to 26.707.72221, a macOS user says New Chat no longer starts and instead fails with:
> DeviceCheck token generation is unavailable
According to the report:
- existing Projects still work normally;
- the browser version works normally;
- the failure only affects the new chat flow;
- logs show repeated attempts to connect to Apple’s com.apple.devicecheckd, but the daemon cannot be found.
The issue started immediately after the built-in updater installed the new version.
More from coding & agent
- BELL: Open-Source Stack Combines Browserbase, Eve, iMessage and Stripe Link for Personal Agents — jeff_weinstein · 2026-10-27
- Two engineers rebuilt a FedEx supplier's billing core in 3.5 months vs an estimated 7-8 — alex_verem · 2026-10-27
- GPT-6.1 Terra gains ~20 points on Terminal-Bench 4.0, rivalling GPT-6.1 Sol — ArtificialAnlys · 2026-10-27
- GPT-6.1 Terra scores 48 on AA Coding Agent Index at one-third the cost of GPT-5.6 Terra — ArtificialAnlys · 2026-10-27
- Shift-1 router cuts coding agent spend up to 55% while keeping SWE-bench accuracy — ypatil125 · 2026-10-27
- Non-coder vibe-codes a Godot JRPG with Claude Code in two weeks, music and art synced — ADHDavid · 2026-10-27