I was thrilled to be able to use wifi calling, because our home has terrible reception. However, now, whenever I leave home, I am unable to make or receive calls even when not logged into wifi. That is, there may be wifi in the area, but it requires a password, so I can't use it. Instead of reverting to cellular, the phone just doesn't work. My husband has exact same phone and isn't having this issue. I'm thinking that some setting is wrong with my phone, but I don't know what. Do I have to manually turn off wifi every time I leave the house?