Expired50% confidenceFactExact time
The 502 Bad Gateway error between Codex++ and local Codex is caused by a local network proxy (VPN/circumvention tool) also proxying local addresses, resulting in intercepted communication.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Complete Guide to Codex Installation & DeepSeek Integration Troubleshooting
bilibiliFutureAI实验室6/6/2026
Related Claims
Unverified即使用户开启VPN或代理，WebRTC的STUN请求仍可能绕过VPN隧道暴露真实本地IP地址67% similarUnverifiedWebRTC泄露会绕过VPN隧道暴露用户真实本地IP，是地区伪装识别信号66% similarUnverifiedOnly after all 5 WebSocket reconnection attempts fail will Codex automatically downgrade and switch to the HTTP/HTTPS protocol.62% similarUnverifiedThe WebRTC protocol may bypass proxies or VPNs and directly expose the host machine's real IP address, creating an anomalous signal that contradicts the proxy IP.62% similarUnverifiedRe-enabling UPnP in the case described caused the UGREEN NAS to autonomously expose HTTP, HTTPS, and SSH (port 22) to the public internet.57% similar
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