Socketexception: OS error: connection timed out, errno = 110, address = 192.19.170.13, port = 47763. In flutter

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Flutter

I am using the Flutter package flutter_esc_printer: ^0.1.0 to print to a thermal receipt printer.
Normally I expect the printer will be connected by Ethernet but it gives the error SocketException: OS Error: Connection timed out, errno = 110, address = 192.19.170.13, port = 47763.

What I have tried:

this is my code-

Future<Ticket> testTicket(PaperSize paper) async {
    final Ticket ticket = Ticket(paper);
//
uid = FirebaseAuth.instance.currentUser.uid;
      areaRef=FirebaseDatabase.instance
        .reference()
        .child('Area')
       .child(uid);
  areaRef.once().then((DataSnapshot snapshot){
     contactList .clear();
  Map<dynamic, dynamic> values = snapshot.value;
          values.forEach((key,values){
            values["key"]=key;
            // if(values[1]==uid)
            // {
          contactList.add(values);
          }); 
  });
//
    ticket.text(
       "Area Details",
        styles: PosStyles(align: PosAlign.center));
    ticket.text('Kissan Accounting',
        styles: PosStyles(align: PosAlign.center));
    ticket.hr();
    ticket.row([
      PosColumn(
          text: 'Area Name',
          width: 2,
          styles: PosStyles(align: PosAlign.left, bold: true)),
      PosColumn(
          text: 'Area/Unit',
          width: 2,
          styles: PosStyles(align: PosAlign.left, bold: true)),
      PosColumn(
          text: 'Source',
          width: 3,
          styles: PosStyles(align: PosAlign.center, bold: true)),
      PosColumn(
          text: 'IrrigatedType',
          width: 3,
          styles: PosStyles(align: PosAlign.center, bold: true)),
      PosColumn(
          text: 'Location',
          width: 2,
          styles: PosStyles(align: PosAlign.right, bold: true)),
    ]);
      for(int i=0;i<contactList.length;i++)
    ticket.row([
      PosColumn(text: contactList[i]["areaname"], width: 2),
      PosColumn(
          text:  contactList[i]["area"],
          width: 2,
          styles: PosStyles(
            align: PosAlign.left,
          )),
      PosColumn(
          text: contactList[i]["Source"],
          width: 3,
          styles: PosStyles(
            align: PosAlign.center,
          )),
      PosColumn(text: contactList[i]["IrrigatedType"], width: 3, styles: PosStyles(align: PosAlign.center)),
      PosColumn(text: contactList[i]["Location"], width: 2, styles: PosStyles(align: PosAlign.right)),
    ]);
    ticket.hr(ch: '=', linesAfter: 1);
     ticket.text('Thank you!',
        styles: PosStyles(align: PosAlign.center, bold: true));

    ticket.feed(2);
    ticket.cut();
    return ticket;
  }
  _testPrint() async {
    const PaperSize paper = PaperSize.mm80;
    String address =  "192.168.0.111"; // 192.168.10.10
    if(address.isIpAddress){
      //print vai ip address
      _printerNetworkManager.selectPrinter(address);
      final res = await _printerNetworkManager.printTicket(await testTicket(paper));
      
    }else if(address.isMacAddress) {
      //print vai mac address
      _printerBluetoothManager.selectPrinter(address);
      final res = await _printerBluetoothManager.printTicket(await testTicket(paper));
    
    }else{
      print("Error :e");
    }
  }