I followed the Solution provided by the op, however, this did not fully resolve my problem. This was my experience:
After performing the command: set ipv4.dns 1.1.1.1, I was able to verify the new dns setting (1.1.1.1) using “print”. However, after I did a host restart, while there were no boot errors displayed, when the host restarted, the dns setting (1.1.1.1) had been lost. Moreover, there were persistent errors in the supervisor logs, and the stalled/hanged “Preparing Home Installation” screen persisted.
However, if I used the Solution modification provided by meyerdenney (adding: set ipv4.ignore_auto-dns yes), then after the host restart command the HAOS booted successfully (no boot errors and no supervisor log errors) and the HAOS started remotely without stalling at the “Preparing Home Installation” screen (although it took several minutes to finish, as expected).
So for me, the extra command to set ipv4.ignore_auto-dns yes was critical. Thank you all for providing your help. You really saved my bacon.
I’m also unable to get the nmcli settings to stick. I update them, print shows that they are present, I enter save and exit and host restart, but when I go back to nmcli the settings have been reset.
I’ve tried all the suggestions here, many times over, but the settings won’t stick.
I’ve done a couple of previous installs with no issue but on one site decided to separate Frigate and HA to dedicated RPis. I gather the issue may be trigged by attempting a setup with another HA instance already on the network? Can not believe how tedious this is!!!
I’m trying to figure out why the incorrect settings are persisting in a fresh install of the OS…could anything be achieved by setting up the box first with rapsbian? [makes no sense clutching at straws…]
I had exactly the same situation, but I was restoring HASS yellow - and possibility to access CLI didn’t exist. However, in Asus router, I forced HASS DHCP IP and DHCP DNS server to external (not the router) DNS server. That did the trick and I got rid of “Preparing Home Installation” dialog and forward.