I was able to get this working with some help from this post.
First I had to get home assistant to work with my TV by editing config.txt had to set values for my configuration.
hdmi_group=2
hdmi_mode=16
Then on the command line I had to run the following commands.
login which it appears takes you to the underlying operating system command shell.
Then I had to enter nmcli con edit “Supervisor end0”
Then print ivp4
I noticed there were no ip addresses listed for ipv4.dns.
I then entered remove ipv4.dns
Then I entered set ipv4.dns 8.8.8.8.
Then print ipv4 again to verify the DNS ip address was set.
Then enter save
Finally enter quit. Quit takes you back to the Home Assistant (HA) command line interface (CLI)
From the HA CLI I entered host restart to restart the device.
Everything started working after that.
I don’t know exactly what “Supervisor end0” is exactly. I’m guessing its a configuration file for either the docker container or the supervisor itself and those tools appear to have a separate DNS configuration? I’m not sure but the commands above got me started.