I have no clue....but I have my doubts that "Atreano" would be commercially available, 15 years ago.
If that's a ripe, no-name and sold as a "Tropical Fig"...you may have a dud variety, that's been grown from seeds. Has this tree ever produced good figs? It also might be a variety that needs a wasp, for caprification, but I'm not sure.
I would make one last effort to grow this variety to perfection, and then, if the properly ripened figs still taste like crap....I'd start year 16 with a new, named-variety, tree. Don't waste your time on a fig tree that produces figs that you can't eat. Life's too short.
Frank
WELCOME!