I've got an older Linksys router and lately when I change anything on it, it freezes. Tonight I added a new port forward and it completely crashed. All the led's when solid, I had to unplug it to reset the damned thing. They are fairly cheap these days (it wasn't when I got it) but I don't know if I need to change. I mean is this a sign of impending doom or just one of those things?