OK, so my 655 is working fine, and I recommended it to a friend who's very happy with it too. But he's pointed out that there is an unmarked, square button on the side (top) of the router, in the black band that runs around the case. There's nothing in the manual about it.
Anyone know what it is, or what it's for? It clicks when you push it, but I can't see that it does anything....
Just wondering.