某台设备突然连接不上EMQX， 之前都可以正常连接

EMQX
, , ,
1

2026-01-16T01:38:13.891393+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.189:27650, username: test2, reason: not_authorized
2026-01-16T01:38:55.119847+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 19}
2026-01-16T01:38:56.011698+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.189:27877, username: test2, reason: not_authorized
2026-01-16T01:39:55.120673+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 28}
2026-01-16T01:39:57.174067+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.189:18177, username: test2, reason: not_authorized
2026-01-16T01:40:55.121648+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 17}
2026-01-16T01:42:49.399381+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.186:23350, username: test2, reason: not_authorized
2026-01-16T01:42:55.123776+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 2}
2026-01-16T01:42:55.737129+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.186:33008, username: test2, reason: not_authorized
2026-01-16T01:43:55.124741+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 28}
2026-01-16T01:43:56.873225+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.186:23370, username: test2, reason: not_authorized
2026-01-16T01:44:55.125645+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 27}
2026-01-16T01:44:55.809471+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.186:23606, username: test2, reason: not_authorized
2026-01-16T01:45:55.126711+00:00 [warning] msg: log_events_throttled_during_last_period, period: 1 minutes, 0 seconds, dropped: #{authentication_failure => 28}
2026-01-16T01:45:56.853137+00:00 [warning] tag: AUTHN, clientid: 330000002, msg: authentication_failure, peername: 111.55.204.186:23847, username: test2, reason: not_authorized

2

认证不过，密码不匹配，要不就是设备没传对 要不就是你的服务器改密码了

3

账号密码没有问题，固件也没变动，而且其它设备都能连接，就这一台前突然连不上了（前几天都可以连接），reason: not_authorized 这个错误好像是认证授权， 还没到账号密码的步骤

4

我说的应该没毛病的，你用tcpdump抓包验证一下就知道了

5

设备问题，已解决