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by mw1472005
Thu Apr 20, 2023 4:07 am
Forum: ESP-IDF 中文讨论版
Topic: mqtt DNS lookup failed err=202 res=0x0
Replies: 7
Views: 19156

Re: mqtt DNS lookup failed err=202 res=0x0

简单点说，这个错误是因为你输入了错误的地址或端口导致的，所以解决办法就是先确认一下自己输入的地址是否正确就可以了

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