There can be plenty of reasons behind internet connection problems in iPhone X iOS 13. With the help of this blog, you shall be able to troubleshoot such problems quickly. Simply follow the fixes mentioned below:
Method 1: Reboot the iPhone
Firstly, do a long press on the side switch or else the Volume switch till the Power off slide gets displayed on the screen.
Next, move the slider for turning off your phone.
Then, wait for half a minute.