SIM900 throws error after resetting and re-connecting.

All I do is run the below calls .... one after another it works as expected over 1.5 hour ... even chaining them via callback.

Then once I start resetting the SIM900 (my own reset) wich completely switches the SIM900 off and back on.

The first request (getJobs) will fail repeatedly.

// template for this device
var device1 = {
    protocol: "v1",
    checksum: "",
    device: "defaultDevice@xyz",
    at: "now",
    data: {}
};

function post(template, payload, fn, fne) {
  template.data = payload;
  content = JSON.stringify(template);
  var options = {
    host: 'api.carriots.com',
    path: '/status',
    port: '80',
    method:'POST',
    headers: {
      "carriots.apiKey": "aaaaaaaaaaaaaaaaa",
      "Content-Type": "application/json",
      "Content-Length": content.length
    }
  };
  var req = require("http").request(options, function(res)  {
    var d = "";
    res.on('data', function(data) { d+= data; });
    res.on('error', function(data) {
      console.log('error', data);
      if (fne){
        return fne();
      }
    });
    res.on('close', function(data) {
      var obj = JSON.parse(d);
        if (fn){
          return fn(obj);
        }
    });
  }).end(content);
}

the calls are done like:

function getJobs(fn, fne) {
  var options = {
    host: 'api.carriots.com',
    path: '/streams/?device=Commander@mydevice',
    port: '80',
    method:'GET',
    headers: {
      "carriots.apiKey": "key",
      "Content-Type": "application/json"
    }
  };
  var req = require("http").request(options, function(res)  {
    var d = "";
    res.on('data', function(data) { d+= data; });
    res.on('error', function(data) {
      console.log('error', data);
      if (fne){
        return fne();
      }
    });
    res.on('close', function() {
      var obj = JSON.parse(d);
      if (fn){
        return fn(obj);
      }
      console.log('req closed');
    });
  }).end();
}