I seem to see that the supervisor is on 192.168.0
So. can you possibly set the router to that subnet?
Other… a bit higher in the same post
How to change IP adresse in CLI - Configuration - Home Assistant Community (home-assistant.io)
Repeating that I cannot verify this as no I donot have HAOS
And… you HAVE to know the subnet of the router before you start setting static IP anyhow else it will continue to not work if you set it to 192.168.1 and subnet is 0