I have a Linksys router, WRT150N, which lately has been losing its WiFi\nsignal. If I power down for 15 seconds it will come back up, but a\ncouple of days later it will do it again. Sometimes it will\nspontaneously die for a few minutes and come back up on its own. I am\npretty sure it never did this before, or if it did, it was too rare to\nnotice. Is it starting to fail or might it be something else?