Whenever I connect my iPhone to my MacBook using the USB cord, the Web browsers on my iPhone stops working. I can't browse the web using Safari or Chrome. However, I can still surf Instagram without any problems.
Another weird thing I notice is that the Wi-Fi symbol turns into LTE when I connect to my MacBook.
However, once I disconnect the cable, the Wi-Fi symbol comes back. If I refresh the page on either Chrome or Safari it loads.
What is going on?
I don’t have a Personal Hotspot section under Settings app:
When my cellular data is shut off, neither LTE nor WiFi show up:
Also noticed that the iOS Stack Overflow app does not work either when connected to my MacBook.
Best Answer
As OP said, "Internet sharing is on and all the sub-boxes are checked", I think this is the problem.
Not all apps in iOS can detect and use network coming through iPhone USB. Most of them check only Cellular data, Wi-Fi and Bluetooth for internet
On Mac System Preferences -> Sharing, Internet Sharing by USB cable should be turned off for using iPhone apps.