openai/codex · error · anyhow::Error

failed to start managed network proxy: {err}

Error message

failed to start managed network proxy: {err}

What it means

Error "failed to start managed network proxy: {err}" thrown in openai/codex.

Source

Thrown at codex-rs/core/src/session/mod.rs:1079

        let spec = spec
            .with_exec_policy_network_rules(exec_policy)
            .map_err(|err| {
                tracing::warn!(
                    "failed to apply execpolicy network rules to managed proxy; continuing with configured network policy: {err}"
                );
                err
            })
            .unwrap_or_else(|_| spec.clone());
        let network_proxy = spec
            .start_proxy(
                permission_profile,
                network_policy_decider,
                blocked_request_observer,
                managed_network_requirements_enabled,
                audit_metadata,
            )
            .await
            .map_err(|err| anyhow::anyhow!("failed to start managed network proxy: {err}"))?;
        let session_network_proxy = {
            let proxy = network_proxy.proxy();
            SessionNetworkProxyRuntime {
                http_addr: proxy.http_addr().to_string(),
                socks_addr: proxy.socks_addr().to_string(),
            }
        };
        Ok((network_proxy, session_network_proxy))
    }

    async fn refresh_managed_network_proxy_for_current_permission_profile(&self) {
        let Ok(_refresh_guard) = self.managed_network_proxy_refresh_lock.acquire().await else {
            error!("managed network proxy refresh semaphore closed");
            return;
        };
        let session_configuration = {
            let state = self.state.lock().await;
            state.session_configuration.clone()

View on GitHub (pinned to 339751715c)

Solutions

1. Check the managed network proxy binary and port availability per the reported error.

When it happens

Trigger: Thrown at codex-rs/core/src/session/mod.rs:1079 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/bb3d0068802411b6. Report an issue: GitHub.