Trouble printing to ZQ520 on IOS but not Android

Hi there:

I am working on a cross platfrom Zebra Printer application on Android and IOS. Using the bit of code below
I can successfully print on Android - however when trying to print on IOS I am able to Connect - but get an immediate
"Error writing to connection". In addition if I get the printer status I get this error:
"Error getting status: Malformed status response - unable to determine printer status". In addition this command:
IZebraPrinter printer = ZebraPrinterFactory.Current.GetInstance(printerLanguage, connection);
will timeout on IOS as well - while working on Android.

The Info.plist seems to be in order - and matches our current IOS only application which is working fine. I have the privacy setting and specify the port.

Sounds like a config issue - but not sure what else to change. Code is attached below:

//Where ChosenPrinter implements IDiscoveredPrinter
//Error occurs attempting to invoke Connection.Write.
//My connection properties just prior to writing are attached in the image below.

connection = ChoosenPrinter.Connection;
if (!connection.IsConnected) connection.Open();
PrinterLanguage printerLanguage = PrinterLanguage.ZPL;
IZebraPrinter printer = ZebraPrinterFactory.Current.GetInstance(printerLanguage, connection);
/*if ((!CheckPrinterLanguage(connection)) || (!PreCheckPrinterStatus(printer)))
{

return;
}*/
printer.Connection = connection;
if (Device.RuntimePlatform == Device.iOS)
{
printer.Connection = connection;
//string printerSettings = m_session.AppSpec.GetValue<string>("ZebraPrinterVarSettings", "");
string printerSettings = "! U1 setvar \"device.languages\" \"zpl\"+! U1 setvar \"media.type\" \"journal\"";
string[] vars = printerSettings.Split('+);
if (vars != null && vars.Length > 0)
{
foreach (string var in vars)
{
connection.Write(Encoding.UTF8.GetBytes(var + "\r\n"));
}
//connection.Write(Encoding.UTF8.GetBytes("! U1 setvar \"device.languages\" \"zpl\"\r\n"));
//connection.Write(Encoding.UTF8.GetBytes("! U1 setvar \"media.type\" \"journal\"\r\n"));
}
}