I work in a neighborhood with poor Verizon cellular signal. One of the neighbors near where I work recently must have added a Verizon network extender which my phone now automatically connects to. When my phone is connected to the network extender I have no data connection even though it shows a good number of bars on my signal strength indicator. I have no idea which house has the extender and so asking whomever it is to block outside access is not possible. I have searched this forum for answers and have tried changing my advanced calling feature to off and HD voice only. This does not disconnect the network extender. I have also tried to change my network from global to one of the other settings. This also does not disconnect the extender. I use a Samsung Galaxy note 8 with Android 9. This is unacceptable given the amount I pay for service.