How to make a one sided tunnel work in reverse

Hey I have a wireguard tunnel set up as follows

Server with fireguard <---------------> Firewall <------------> Internet <------------> Remote 4g laptop

When i ping from my laptop to me sever everething goes well as i have a dynamic dns set up. BUT if i try to ping the laptop from the server i get nothing.

I have persistent keep alive turned on at 25 seconds. Im trying to avoid using tail scale, is this possible to have the tunnel bidirectional if one of the computers has to be behind nat?