Is this firmware legit? The writeup is very brief: "This firmware was unavailable from linksys. the 2.50.2 is flawed, use this firmware instead." Does anybody know what is flawed in 2.50.2, and how 2.45.5 is better? There are no ratings of this firmware on the details page. If it was unavailable from Linksys, where did it come from? If anyone has had negative experience with this download I'd like to know before I flash my router into an expensive paperweight.