I think my router is dying.

[Dudefoxlive]

Hi, for the past month or so my cisco linksys ea4500 has been randomly dropping out of the wifi list and resetting it self.  Everytime it resets i have to go in the room and unplug the ethernet going from the modem to the router and plug it back in to get the internet to work.  This is very annoying when for example i am watching a interesting youtube video or playing a game with some of my friends and it just drops out.  At first it started out once every once in awhile but it has grown to two or three sometimes more than that everyday.  We have been using his router for many years and never really had a problem with it.  Can someone please tell me what might be wrong or if it might simply be dying on me?