We definitely want you to have a rock solid connection to your network extender at all times you are within range, angels96. Help is here with no need to call in. To clarify, are you also having issues with connecting an iPhone or something else? How close are you to the extender when you call? I know you mentioned having Wi-Fi calling both on and off. To avoid issues with the extender, please make sure that Wi-Fi calling is off at all times when trying to use the extender.