Sounds like a pretty vague issue tbh. I've had similar issues with phones dropping the network on and off and in most cases the problem was with the phone, not the network. So you might want to look into that as well. A possible culprit is a wifi prioritizing app or feature that came with your phone, they can cause these sorts of issues when they go haywire or don't play well with your network. You could also try resetting your phone's network settings entirely.
Otherwise I can't think of much else than to update the firmware drivers for the router (if you haven't already). In more "probably not but hey" territory there's the possibility of certain devices in your house interfering with the wireless signal...if you have a lot of other wireless devices (in particular bluetooth ones) or even a microwave oven in a strategic position it could fuck with your connectivity. And last but not least, try switching around the wifi channel in case it's overloaded by nearby network(s). But that seems unlikely, seeing as you live in a house and not an apartment.
Hope it helps bro...but probably not super helpful.
