No network connection, your network isn't connected to the internet.
When trying to set up the apple tv with my iphone or ipad, it fails, try the manual option, but doesn't want a wireless connection, its like if its remember when was plugged to the ethernet and when trying to config the IP, DNS, etc manually, the automatic overwrites my changes (even when I set it to MANUAL), is simply not allowing me to set it up. It was a very functional apple tv once... Factory reset already performed. Not allowing to set up as new apple tv, looks like stuck on ethernet even when not connected through ethernet and also when connected to ethernet doesn't work. The other 2 apple tv's work fine.
Apple TV HD, tvOS 15