Wi-Fi loss

I keep losing Wi-Fi the system sends me a message telling me I have lost my Wi-Fi connection this happens mostly every night between two am and 5 am the app has no help on why this is happening and there's no reason why should happen when all other wi-fi systems in the home are working Wi-Fi signal is good, is there anything to do with the cameras not working on Wi-Fi or is this the base station losing Wi-Fi no information on why this is happening