Connect to two diferrent IPs

[AFazakas-UAH]

Hi. I a developing an APP with flutter, in this case I want to check if the connection to the first IP has been made correctly, make the query correctly; otherwise try to make the connection to the second IP. Next I leave you the code that I have implemented and it works correctly with the first IP, however when I select the second IP it does not give any error, but the query is not done, because it returns the empty variables.

import '../Cuidador/screen_Paciente.dart';

class InfluxDBService {
  late InfluxDBClient client;

  // var url = 'http://192.168.72.11:8086'; // PC POM
  var url = 'http://212.256.20.330:8086'; // PC POM

  var token =
      'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
  var org = 'XXXXXXXXXXXXXXXXXX';
  var bucket = 'XXXXXXXXXXXXXXXX';
  InfluxDBService() {
    //PC POM
    client = InfluxDBClient(
      url: url, // PC POM
      token: token,
      org: org,
      bucket: bucket,
      followRedirects: true,
      maxRedirects: 5,
      debug: true,
    );
  }

  Future GetSteps(COD_PACIENTE_WEARABLE, startDateString, endDateString) async {
    var startDate = DateTime.parse(startDateString);
    var endDate = DateTime.parse(endDateString);
    var queryService = client.getQueryService();
    var StepsQuery = '''
      from(bucket: "${bucket}")
        |> range(start: ${startDate.toIso8601String()}, stop: ${endDate.toIso8601String()})
        |> filter(fn: (r) => r["_measurement"] == "${COD_PACIENTE_WEARABLE}")
        |> filter(fn: (r) => r["Data_type"] == "MISC")
        |> filter(fn: (r) => r["Sensor_type"] == "Movement")
        |> filter(fn: (r) => r["_field"] == "Steps")     
    ''';
    var StepsResponse = await queryService.query(StepsQuery);
    // Convertir el Stream en una lista
    var StepsRecords = await StepsResponse.toList();
    client.close();
    // Procesa los resultados y devuelve el nivel de la batería
    // Procesar los resultados
    var StepList = <StepData>[];
    for (var record in StepsRecords) {
      var Step = record["_value"];
      var timestampString = record["_time"];
      var timestamp = DateTime.parse(timestampString).toLocal();

      StepList.add(StepData(Step, timestamp));
    }
    StepList.sort((a, b) => b.timestamp.compareTo(a.timestamp));

    return StepList;
  }
}