iPhone: Safari and Chrome stop working when I connect iPhone to MacBook 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.
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.