problem connection home automation app

Hello!
I have a problem from a customer regarding the connection of the home automation app.
the customer has a static IP with port forwarding for remote access and has had the wifi programmed at home with a class of IPs different from that of the wired network.

  • wired network : 192.168.1.x
  • wirelless network : 192.168.88.x [mikrotik cap ac]
    he tells me that since he had the parameters of the wifi network changed, the app almost never works if connected to wifi at home.
    the customer has an iPhone.
    question: if the phone can’t connect to the app in wifi mode, shouldn’t it automatically try to connect remotely?

Attached is the wifi antenna configuration image


Thank you,Luca.
IMG_5044.jpg

When i read this, something says me that your app even tries to connect to your wan ip.
If so you should look and enable the function hairpin nat.

https://help.mikrotik.com/docs/display/ROS/NAT#NAT-HairpinNAT

the customer says that sometimes the wifi connects and sometimes it doesn’t.

the thing I don’t understand is that I have a customer with the same type of system, but with a different telephone operator and his app works perfectly in all conditions.

I just can’t understand.