{"slug": "debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path", "title": "Debugging Android 14 WebRTC Disconnects on a coturn Relay Path", "summary": "The article summarizes a debugging case involving Android 14 WebRTC disconnects over a coturn TURN relay path. The author emphasizes that a repeated timeout log line was a misleading starting point, and the real root cause was found by focusing on ICE state transitions to DISCONNECTED/FAILED. The key takeaway is that WebRTC reliability issues are systemic, requiring analysis of client, network, TURN configuration, and device behavior rather than treating a single log line as the definitive cause.", "body_md": "I recently wrote up a debugging case around Android WebRTC, coturn, TURN relay, and ICE failures. This is the anonymized version because the useful part is the debugging method, not the original environment.\ncoturn\nwas introduced for more complex network boundaries.The first clue looked obvious: a repeated timeout around a local relay-related address. It appeared near the disconnect window, so it was tempting to treat it as the cause.\nThat was not enough.\nIn WebRTC debugging, a noisy log line can be real without being the root cause. The better starting point was the ICE state transition:\nIceConnectionChange -> DISCONNECTED / FAILED\nStandardizedIceConnectionChange -> DISCONNECTED / FAILED\nThat moved the investigation away from \"why does this timeout appear?\" and toward \"why does the selected media path fail?\"\ncoturn\nso direct LAN candidates did not hide the issue.After the TURN-side changes, the 30-60s disconnect stopped reproducing in the same test matrix.\nFor WebRTC production issues, I would rather start from:\nThe loudest log line is useful, but it should not be allowed to define the investigation by itself.\nWebRTC reliability is usually a system problem: client version, network path, TURN configuration, device behavior, and application state handling all interact. Treating it as a single log-line problem can waste a lot of time.\nFull write-up:\nhttps://snowlyg.github.io/posts/android14-coturn-webrtc-disconnect/", "url": "https://wpnews.pro/news/debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path", "canonical_source": "https://dev.to/snowlyg/debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path-1lbm", "published_at": "2026-05-23 09:14:29+00:00", "updated_at": "2026-05-23 10:04:06.877413+00:00", "lang": "en", "topics": ["developer-tools"], "entities": ["Android", "WebRTC", "coturn", "TURN"], "alternates": {"html": "https://wpnews.pro/news/debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path", "markdown": "https://wpnews.pro/news/debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path.md", "text": "https://wpnews.pro/news/debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path.txt", "jsonld": "https://wpnews.pro/news/debugging-android-14-webrtc-disconnects-on-a-coturn-relay-path.jsonld"}}