Unfortunately I cannot make an appointment at that place, because I am in Kazakhstan. If you have an Iphone, you can try to create the hotspot and connect it with laptop. Then open some web page and live it for 5-10 minutes without any web activity and during that time hotspot connection will automatically disconnect. But, if you will use your iphone(screen will be working) then connection will not disconnect. And if you will use internet on your laptop (surf the webpages) hotspot connection will not disconnect too. You should just open some web page and live it. Try it please, this issue should be on every Iphone.
it is very inconvenient because when you need constant internet connection on laptop and it is disconnecting without internet activity on it. Then you should reconnect and etc