WIFI & Cellular keeps dropping off
So I have a brand new iPhone 13 pro max and I've only been using it for just over a week.
The problem is it keeps dropping off from WIFI & Cellular despite me resetting network settings, forgetting wifi & setting it up new, keeping the iOS up to date & erasing & resetting all settings.
I have to switch it on to airplane mode and restart the phone to get wifi & cellular back. Then it will work perfectly for a few days then drop off again.
My question is: Is this a hardware problem that will get worse as time goes on? Should I get Apple to replace it or is it just a software bug with iphone 13's that might be ironed out in a future update?
I'm using iOS 16.3.1 if that helps.
Any advice appreciated. Have a great day 😊
iPhone 13 Pro Max, iOS 16