I use my laptop and phone to trade. I sometimes use the phone only but still i get notifications on change of IP address. Why is this the case?
If it is related to mql5.com portal so go to your profile here - Settings - Security - Binding to IP address -and make appropriate changes.
I would wish to understand why the IP address keeps changing.
If your phone is not on wifi but on for example G4 then you can get a different IP address like every time because then your phone gets a dynamically assigned IP address depending on the cellular network.
I had the same and as Marco vd Heijden, every time your phone connected to the 4G or Wifi it will get new IP.