Remote acces wifi with Tailscale

Hello, my problem is, i have Tailscale and sunshine configured on my PC and Tailscale on my Phone, tablet, steamdeck etc. and a Raspberry pi with Home Assistant as Tailscale exit node

I can connect with my phone over data (3G), on my local wifi, but not on another wifi (not my local wifi, other like my parents house wifi).

¿What i can do for Connect on other wifis?