Codex: ping: connect: Network is unreachable

I’m failing at the first hurdle here. I created an environment for ChatGPT Codex, with permissive network options. But when I ask Code (not Ask) to ping google.com, it fails with ping: connect: Network is unreachable

So am I misunderstanding that Codex can only use internet during setup but not execution or something?

Ping is not an HTTP method so it might not be allowed even with internet access enabled. Instead try something like curl https://google.com.