Every once in a while, even though my iPhone still shows me as on LTE and with two, three or even four bars as I am using it as a personal hotspot, I'll get a pop-up window on my iPhone telling me that there's no network connection, and it can no longer access the internet. This will last for maybe 10-20 minutes, whether or not I reboot my iPhone. Then I can access the network normally again.
Is this typical? Is this a potential problem that needs to be dealt with?
Thanks!