Matter Add-On won't install

Configuration Matter/Thread
1

Hi everybody!

I am all pretty new to this and learning as I go.
I wanted to install the Matter addo-on to my HA install, which runs on a Pi 5 with version 2024.9.1 running.

Whenever I want to install the add-on, I get an infinitely spinning wheel.
When I check the Supervisor logs, I see this message:

e[32m2024-09-13 13:17:03.106 INFO (MainThread) [supervisor.docker.interface] Downloading docker image homeassistant/aarch64-addon-matter-server with tag 6.5.1.e[0m
e[31m2024-09-13 13:17:03.131 ERROR (MainThread) [supervisor.docker.interface] Can’t install homeassistant/aarch64-addon-matter-server:6.5.1: 500 Server Error for http+docker://localhost/v1.45/images/create?tag=6.5.1&fromImage=homeassistant%2Faarch64-addon-matter-server&platform=linux%2Farm64: Internal Server Error (“Get “https://registry-1.docker.io/v2/”: dial tcp: lookup registry-1.docker.io: Temporary failure in name resolution”)e[0m

I tried to figure out what I could do, restarted HA and the Pi itself, reverting to an previous version etc but no luck so far.
I PRESUME it is network related, but I have no idea how to resolve that. I even gave the Pi a direct line out my home network and it is reachable from outside> But since I am new, I am probably missing something obvious here.

Any help is much appreciated!
Have a nice day!

2

Well, never mind.

I created a loop by accident in my network which screwed with my internal DNS resolve.
Case closed!

3

Thanks for the update.

We actually plan to improve insights in what exactly is wrong. To learn from real world cases: In your case, in what way was your DNS misconfigured?

4

I resolve some sites internally, mostly goverment ones or work ones or those that are prone to phishing and such.
As a result I have an internal DNS servers that manages those so that I do not have to rely on the public ones.
I wrongly patched my Pi so that it only had the internal DNS server and was unable to reach the external/public DNS servers.

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