Spotty internet

For the last 2 days my internet connection has been in and out, computer seems fine but streaming will disconnect, personal phone surfing in and out but work phone is good, at times downstairs streams but upstairs is off…seems mostly to happen in evening/night. I gave unplugged router,etc. more than once and it works but sometimes only for a while, sometimes restarting the Apple TV works sometimes not…getting tired of scrambling around 😕