I have a nexus 6 that was given to me. I'm on metros unlimited $60 plan and it's great. However the tethering doesn't work. It did on my old phone but the metro lady said that tethering was deactivated on the new phone when she activated it. I'm on 7.0 Android. It's unrooted. I can and will root the phone if need be. When I turn on hotspot...it shows as connected but nothing will connect. Please advise.