No one can answer that, not even the biggest marketing experts. It depends on your app and you should set up your backend so you can drive A/B tests for this kind of thing.
It might even be that your user base and game play simply incentivises to deactivate wifi and not get ads at all anyhow.
We for example recently discovered that we get way more revenue in specific countries by completely removing ads and only give people payment options (instead of both).
In other countries it's the exact opposite.
In other countries we use google admob segmentation to separate possibly paying from non-paying users.
It's a constant juggle and you have to be constantly behind such things. Optimising and researching all day long if you want to economically handle any bigger app. Of course this is often only relevant after you know your app itself is well received.