Internet Problems over a month

I have been having internet problems for well over a month. Multiple laptops and pcs every morning show a “no internet, secured” message. Phones and iPads were working fine at first but now iPads are also struggling. I have gotten TWO new modems, talk to support about a dozen times, and have had 2 techs come out. I need to reset the modem multiple times almost every morning until everything works. Support sees everything is fine even though it is not. So idk how to get this actually fixed