user name and/or password are wrong? Not much we can say about anything here.
this post was submitted on 19 Aug 2024
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What user name does it need? It's own or the one I login as? I've been using it for 4 years and have never had to configure this addon.
you could add a new user ...depending on your unknown setup. you could try sending mqtt test packages from your terminal or any mqtt tool. that would narrow down the problem a lot.
Here are some more screenshots.