Wrt160n linksys &dd-wrt?

I have used dd-wrt have it installed on my old wrt54g which I'm currently using as a bridge repeater. But after flashing a wrt160n with dd-wrt I for the life of me can't make it function as the 54g The real kicker is when I first flashed the 160n and checked it was working great then for some unknown reason it just stopped.