On February 27, 2014 at 08:05, SDZD said...
Replace your router. The comcast modem/router/wifi units are crap.
This is the first step in any system. Service provider gear should be a modem only. After that use network gear that works and you know well. You have to own the network. If the WAN is down it is on the service provider but you still have the LAN working for your control system.