Well, I have a problem and he already gave me a headache. I did an application with Magic Software and to run it on my Android I have to configure Magic Studio the right way (done), run the project on the Magic server (done and working) and install MagicDev.apk on android available in the Magic XPA folder and already done), and when finished installing, the application must be run and when it is executed it asks to enter the URL of the Magic application, which is as follows: link , but when trying to access this, it is not possible, it says that the application was not found or failed on the connection. It is worth noting the following, I had this same access problem when using XAMPP or Wamp, because when trying to access localhost with the cell phone, the link would not respond, it would load until I gave the message (I put Wamp online for that, of course , and changed the settings in the .conf files). Another important thing is that I made an Android application in Android Studio where one of its functions was to access the internet and although the application installed on Android really could not connect to the link, the emulator accessed quietly (the emulator runs inside the pc, would there be anything?) and I could do what I had to do, this link was on a page that I made using Wamp, that is, the emulator accessed my IP, and the cell phone can not. My question: Is this some configuration of the notebook, Android, Internet router or am I doing something wrong? My friend created a page using Wamp, configured it correctly and placed it online and from my home, with his IP, he accessed the page (with my notebook) in a quiet way. One more note, my notebook connects to the internet with Wifi and my Android too, meaning they are not connected to the source directly as my room PC is, and I do not know if that also matters. I will later try to run the application on my PC from the room and see if it gives him access to his IPv4, but I do not think it will work either. Anyway, does anyone have any idea what it can be? I do not like messing with my notebook's Internet and other settings without knowing what I'm actually doing, I'm afraid to make my notebook vulnerable. Here in this video link you can see the process I am describing here, but it is not working for me. I urgently need help, please !!! I've been searching the forums in English and I saw that maybe it could be the fault of the firewall. Anyone know?