When on my home WiFi network (or really any open network), when the WiFi drops or lags my phone automatically connects to my sister's phone (or that oepn network's 4G/5G alternative).
Our WiFi name is NetGear77. When it kicks me off NetGear77 due to instability or not loading fast enough, it forces me to connect to NetGear77-5G, which is my sister's phone.
My question is, how can I stop my phone from connecting to the other network when the WiFi lags or drops? It is weird when I can see my sister is searching up stupid crap like Twilight. I already have mobile data turned off, but I don't think it does anything.