Ipad continue to connect with sim instead wifi

[Maccotto]

Hi guys.
i have ipad air 2 and i have a problem very particular .
My ipad connect everytime with my dat-sim instead my wireless.
Ad example i connect to wifi? ok i can navigate normally but when i go stop and return back after 1 hour i see my ipad connected with my sim card.

Another problem is that often i am connect with wif and while i navigate my ipad switch connection with simdata (My wifi signal is very high).

What is the problem?

 

[jpn]

a somewhat drastic, but still manageable, potential solution is to Reset the Network (Settings/General/Reset).
this would delete all network connecting preferences (as well as automatic logins and login passwords to networks) that you may have in place.
but when something like the problem you are having needs to be solved, it may be a solution.

before you do the above, you should check to make sure that this problem happens when you connect to any/all Wifi networks, and not just this one particular network to verify that the problem is not just with that one Wifi network.

other things that i would do before Resetting the Network would be to turn off "Ask to join network" in Wifi parameters as well, as well as try turning off VPN automatically connecting if you have VPN turned on and set to automatically connect.
and, the most simple thing to do first is to "Forget this network" (in Wifi (press the "i" and then Forget this Network) and then try to reconnect to that same Wifi network and see if it happens again.