[TIMOB-26737] WiFi network connection issue via a TCP socket to a local IP address (e.g. 192.168.1.1).

For a device configuration application, which uses a WiFi access point on the hardware to be configured, we're having a problem with some Android devices that appear to use the 3G network instead of the WiFi network to connect via a TCP socket to a local IP address (e.g. 192.168.1.1). In the device, in question, the WiFi network is marked with an active connection but without internet connectivity. We would need to understand if it is a problem that depends on the device or the SDK Titanium, and if it is possible to declare what type of connectivity to use to open the TCP client connection (Titanium.Network.Socket.TCP)

var socket = Ti.Network.Socket.createTCP({
    host: "192.168.1.1",
    port: 7000,
    timeout: 1000,
    connected: function (e)
    {
    	console.log("Socket OPEN");
    },
	error: function (e)
	{
		console.error(e.error);
    }
});

The problem seems to be derived from the fact that if the device is connected to a wifi network without internet, the TCP socket connections tremble the SDK are opened through the 3G network (or are not opened) instead of via the WiFi network even if you try to connect to a local IP (eg 192.168.1.1). To try to reproduce the problem the procedure should be as follows: 1. I connect to a wifi network without internet with a server socket listening to the 192.168.1.1 address. The device must also be connected to a mobile network. 2. Through the app I try to open the socket as indicated in the sample code The cases we have detected are the following: - in some devices, the connection to the local IP on the wifi network without internet is without problems even if you are connected to the mobile network at the same time - in other devices, the connection to the local IP of the network without internet fails when the device is also on the mobile network - on the same device that presents problems, disabling the mobile data network on the device the connection to the local IP on the network without internet seems to work correctly One of the devices that present the problem is the following: Blackview BV9500 (Android 8.1)