如何修复 Tasmota MQT: Connect failed to ..., rc 5
问题：
在 Tasmota 控制台上，你看到类似这样的错误消息
how-to-fix-tasmota-mqt-connect-failed-to-rc-5.txt
17:56:11.326 MQT: Connect failed to 10.19.50.10:1883, rc 5. Retry in 50 sec解决方案
你的 MQTT 用户名/密码错误。检查它们是否与你在 Tasmota MQTT 配置页面中服务器中配置的内容匹配。
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