Every few days I get 2 red lights on my box indicating that I have no Internet and no WIFI connection. All my other equipment (phones, laptops etc) are still connected to the WiFi on both 5ghz and 2.4ghz. If I reboot the tivo box it reconnects OK. If I go through the WiFi settings in the box it says it can't find any WiFi signals. Has my box gone faulty?