We have a Home Signal Box/Femtocell in our house provided by Three/3 UK, which we've been using due to poor coverage since we moved house. It has worked perfectly with two iPhone 6's, a 5S and a 5C. My partners iPhone 7 is constantly suffering signal dropouts, however. My 6 is working fine, so it doesn't seem to be an iOS 10 issue. I asked Three on Twitter, and they weren't aware of any known issues, but another twitter user jumped on my conversation having the same problem, so I'm wondering if it is more widespread. Anyone else experiencing issues, and if so, have you managed to resolve it?