Who I have the same questioned this topic

I’ve had an issue ever since I received the extender. When arriving home it connect and I will have full bars, but if I make a call nothing happens and it’ll go to call failed. After a couple minutes I’ll try again #48 it’ll say I’m under extender coverage and then the all will go through. Also when on calls they will randomly fail, it doesn’t seem to be GPS related, or internet, as I’ll be watching Netflix etc and it doesn’t stop working when a call drops. Any ideas ?