Installing on different router than previously installed

I just ordered a Firewalla Blue Plus. Presently I own a TP-Link Archer C9 router but am waiting to change internet providers from Optimum to T Mobile Home internet 4-5G . They are using a Nokia router. If I install the Firewalla on my TP Link router and a few months later get a new router from T Mobile, will the Firewalla autoconfigure itself if I install it on the new router, or does it somehow have to be manually reset?