No Internet Connection Everytime I Turn Off My Airplane Mode

Everytime i charge my phone i turn on the airplane mode so that the battery health won’t drop but every time i switch off the airplane mode my wifi suddenly cant be used not that its disconnected, it is still connected but its written “No Internet Access” in yellow letter and i have to forget my network then type in my wifi password and its bugging me cause i have to type my password everytime i charge my phone.