@VRice11 I don't know if this will help solve your issue at all, but this happens to me as well. I've narrowed it down to a couple possible things on my personal set up. It's either due to the beam pattern of the access point (which I doubt), or the firmware stability of the 3 ways/dimmers. 
 

I have a 3 way set up on a stair case (one switch at the bottom, one at the top), and a dimmer around the corner from the bottom. I notice all three of those lose connection periodically, but rejoin the network usually within a minute. The access point is wall mounted near those switches and it's POSSIBLE the beam pattern isn't reaching them with a stable connection, but I ran several wifi diagnostic tests on various devices and there's next to zero signal degradation...so I don't know LOL. I just learned to deal with it. 
 

If your switches aren't joining back automatically, it leads me to believe it has to do with your router/modem.