I am having a problem where computers which are using my hotspot keep losing network connectivity. The computer believes it is connected to the wifi network, however there is not actually network connection. I have to turn my computers wifi off and on to resolve the issue, however it will continue regularly. It seems to be associated to when my phone receives data like an email. It is as if receiving the email interrupts the hotspot. I have had this happen with multiple computers so this is not something that isolated to a single computer. In this case it is a MacBook pro and and iPad.