It's 2025, Wyze Sense Hub keeps going offline

It’s 2025, and my Wyze Sense Hub keeps going offline after staying online for 4–6 hours. I’ve tried all the usual suggestions: resetting the hub, removing and re-adding it, switching between Wi-Fi and Ethernet, relocating it, and even using a new Wi-Fi router. My hub firmware is version 4.32.14.716.

I also added a new hub, but the weirdest part is that the new hub won’t allow me to add any of the sensors that came with it—or any of the old sensors either. I don’t want to replace my old hub because I have 15 devices connected to it.

Any suggestions here?