Devices keep going offline

[Theal8r]

My devices: lights, speakers, displays, keep going offline.  I'm tired of rebooting and adding everything ever couple of weeks.

[PeteyPants]

What is your network setup, and what kind of devices are you using? 

[Theal8r]

I have a spectrum router/modem set up, the highest speeds available in my area.  I have 3 smart bulbs, 2 smart plugs, 2 speakers, 2 max hubs, 2 displays.

Spectrum has come out to adjust for heat, apartment interference, and trees (splitter, etc).

Previously, I used a Google  Wi-Fi set up, but that was worse.