1. Turn on TUN mode in the proxy tool, and some clients will be displayed as "virtual network card".
2. Send the following sentence to Codex and let it operate on its own: "Help me fix the problem that Codex Desktop has been Reconnecting: check the proxy port currently used by this machine; repair or create ~/.codex/.env, write the corresponding HTTP_PROXY, HTTPS_PROXY, and NO_PROXY; and finally verify the connectivity of the proxy port. Don't print sensitive values that are already in.env." When you are finished, exit completely and reopen Codex Desktop to see if it will be reconnected