Tmobile Home Internet with Tmobile Cellspot

I am wondering if anyone managed to solve this issue? I have the same situation as the OP. I have an external antenna which allows me to get Tmobile Home Wifi. However, the signal isn't good enough for me to get service in my home. Using Wifi calling is a no go, evident by the fact that as soon as I get into  a service area away from my house, I generally instantly receive all the texts I was missing at home. This issue actually goes deeper for me. Occasionally my home wifi also likes to connect to my neighbor's cellspot. My speeds suddenly drop from ~100mbps to ~8 mbps.