Add FAQ about MQTT not connecting

[NicholasFlamy]

I spent hours trying to figure this out and if this could be included in some way that would potentially help someone out there.

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[NickM-27]

Makes sense but I think we can make it cleaner.

[NicholasFlamy]

Yeah, I just want to be sure people know that even though most apps on TrueNAS Scale (including home assistant) require using the cluster IP since they are Kubernetes, Frigate in docker requires the IP of the server. localhost or 127.0.0.1 doesn't work since it's a container so it loops back to Frigate. Thank you for cleaning it up as somebody will likely find it helpful.

[NickM-27]

Yeah, I just want to be sure people know that even though most apps on TrueNAS Scale (including home assistant) require using the cluster IP since they are Kubernetes, Frigate in docker requires the IP of the server. localhost or 127.0.0.1 doesn't work since it's a container so it loops back to Frigate. Thank you for cleaning it up as somebody will likely find it helpful.

👍 You should either commit my suggestions or update the PR with your own modifications