Do you have a different access point you could try? Even if you have a hot-spot option on your phone and another device to run the WF app to see if you can connect the hub to it as a test. There may be a compatibility issue or something. I know that neither of my hubs had issues with my Aruba industrial grade APs even with both 2.4GHz and 5.0GHz bands with the same SSID. Others, however, have had to separate theirs like you have yours.
Edit: Have you seen this topic?