How do I get NAS to show up in Locations list?

I have 2 NAS servers at home... and 1 of them always appears in the locations list, while the other does not. When I connect with go to server, the other one appears to, but is gone again after a reboot. I have no idea how I managed to get the first one in the list permanently and I have now idea how to get the second one in either. Any tips? Image shows after boot only one of the two... https://preview.redd.it/ilyb1jyjbv7e1.png?width=255&format=png&auto=webp&s=45ee1dcee892dd2d04dd782db3034f0569991c11