Fixing network problems in HASS

Recently I have been working on fixing the configuration issues in my home assistant installation. I run the supervised mode on an Ubuntu VM that I setup myself with some scripts (since it’s not supported by the official installer). Due to this, I encountered a problem with network manager in home assistant that caused home assistant to lose Internet access (so unable to download updates) even though the VM has no problems accessing the Internet as a whole.

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Apt Key Expired in Ubuntu

I was updating my boxes as usual when I encountered an error when trying to run updates on my unifi controller. This lives on a slightly older box (I tried upgrading it at one point and not all the dependencies were supported yet on the newer version), and I ran into an error when running the apt commands. One of the keys was expired for a component needed by the controller. So lets figure out how to update that key so we can update the box once more.

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