Reset Network Settings HUAWEI P20

How to reset network settings in HUAWEI P20? How to restore default network configuration in Android 8.1 Oreo? How to delete the list of Wi-Fi networks in HUAWEI P20?

This tutorial is the answer to all of above questions. Check out how to find this option in Android 8.1 Oreo and fix the network errors in HUAWEI P20.

Hold down the Power button for a short while to switch on the phone.
Now select Settings and Advanced settings.
After that choose Backup & reset.
Tap Network Settings Reset.
At last select Network Settings Reset, and confirm the whole operation tapping Network Settings Reset one more time.
Well done!