I don't know about all these answers, but I had to go into my routers settings and change them to allow access to my BB MAC address( found under Options, Status), by adding it to an allowed list.
Now have WiFi and UMA off my Apple Airport Extreme. Thing is, I am with CBW and thought only TMobile has that feature. Although, I believe CBW uses TMobiles network. Anyway, it works.
Phones Owned: Nokia 6200; Nokia 6126 2ea; 8700g; 8900; Carrier-Cincinnati Bell: Future Bold Owner