Wireless Joint

First off, I am very new at this. Purchased Visible less than a week ago.
Phone service: No problems. Can not tell the difference between Visible and Verizon.
Data: Slow. Can not get above 5.5mb up/down. This is compared to Verizon 27 down 2 up on the exact same phone, same location.

Bottom line ...

Thanks,

That worked.

Purchased a used Mofi 4500. Looking at Visible as a service provider. When I go to purchase a bring your own device sim card, it asks me to enter in my IMEI number to check compatibility. It fails.

I see no way to get Visible on my Mofi.

Getting ready to move into house in the country. No traditional service provider. I have been looking at Mofi, intsyconnect, and the Wireless Joint solutions. My question is, can I place the antenna in the attic? I realize that the signal will not be as good as being outside on a roof, and I might ...