Update 2026-11-06: a later startup investigation found a separate delay. Different Codex versions rejected each other’s shared model cache and triggered model-list refreshes that timed out after five seconds. See Codex startup and the shared model cache.

My XPS uses lfang.idc as a proxy gateway. v2rayA runs on the IDC host, and applications on XPS connect to the gateway over the private network. Codex needs one extra check: its shared app-server daemon keeps the environment it received when it started.