Telegram bots freeze periodically due to NAT timeout silently dropping idle getUpdates TCP connections
증상
Telegram bots in OpenClaw periodically stop responding for ~15–90 seconds because the long-polling (getUpdates) TCP connection is silently dropped by the local NAT device. The stall repeats every ~1000 s (exact interval matches the router’s NAT idle timeout). A fix is available in PR #49460.
원인
Telegram Bot API conflict, rate limit, or webhook/polling configuration error causing message delivery failure.
해결법
See PR #49460: add keepAlive: true, keepAliveInitialDelay: 30_000 to buildTelegramConnectOptions. A 30 s initial delay avoids unnecessary probes on short API calls while refreshing NAT entries well before typical expiry.
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
https://github.com/openclaw/openclaw/issues/49461
Source: https://github.com/openclaw/openclaw/issues/49461
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