Macos wifi localization doesn't work anymore

Hi all,

until few days ago I had a dsl connection (wired, i live in Italy) and I used mac localization (the geographic position) to check "find my" or use it with some on line services (example: when I track a route I use "my position").

Few days ago I switched to a flat 5g connection (italian WindTre) with a wifi 5g router (the previous dsl was so slow and no other dsls offered faster connection): now there's "no position" on my mac mini (with sonoma full updated). Also other devices connected to the 5g wifi don't reveal position. How can I restore the positioning? thanks!!!