MKRGSM 1400 Hanging Timeout

[Kobones]

My MKRGSM 1400 is hanging on gsmAccess.begin() occasionally. I have been testing with the example GSMWebClient sketch:

`/*
  Web client

 This sketch connects to a website through a MKR GSM 1400 board. Specifically,
 this example downloads the URL "http://www.example.org/" and
 prints it to the Serial monitor.

 Circuit:
 * MKR GSM 1400 board
 * Antenna
 * SIM card with a data plan

 created 8 Mar 2012
 by Tom Igoe
*/

// libraries
#include <MKRGSM.h>

#include "arduino_secrets.h" 
// Please enter your sensitive data in the Secret tab or arduino_secrets.h
// PIN Number
const char PINNUMBER[]     = SECRET_PINNUMBER;
// APN data
const char GPRS_APN[]      = SECRET_GPRS_APN;
const char GPRS_LOGIN[]    = SECRET_GPRS_LOGIN;
const char GPRS_PASSWORD[] = SECRET_GPRS_PASSWORD;

// initialize the library instance
GSMClient client;
GPRS gprs;
GSM gsmAccess;

// URL, path and port (for example: example.org)
char server[] = "example.org";
char path[] = "/";
int port = 80; // port 80 is the default for HTTP

void setup() {
  // initialize serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  Serial.println("Starting Arduino web client.");
  // connection state
  bool connected = false;

  // After starting the modem with GSM.begin()
  // attach the shield to the GPRS network with the APN, login and password
  while (!connected) {
    if ((gsmAccess.begin(PINNUMBER) == GSM_READY) &&
        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD) == GPRS_READY)) {
      connected = true;
    } else {
      Serial.println("Not connected");
      delay(1000);
    }
  }

  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, port)) {
    Serial.println("connected");
    // Make a HTTP request:
    client.print("GET ");
    client.print(path);
    client.println(" HTTP/1.1");
    client.print("Host: ");
    client.println(server);
    client.println("Connection: close");
    client.println();
  } else {
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop() {
  // if there are incoming bytes available
  // from the server, read them and print them:
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  // if the server's disconnected, stop the client:
  if (!client.available() && !client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();

    // do nothing forevermore:
    for (;;)
      ;
  }
}`

I have the board connected to battery and usb, but sometimes this loop runs forever if it cannot find a signal:

while (!connected) {
    if ((gsmAccess.begin(PINNUMBER) == GSM_READY) &&
        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD) == GPRS_READY)) {
      connected = true;
    } else {
      Serial.println("Not connected");
      delay(1000);
    }
  }

I'd like the board to resume the rest of the sketch after trying to connect for a few minutes but cannot figure out how to make this happen.

After some extensive searching, I have found that the MKRGSM library has a GPRS::setTimeout(...) method as described here

But the Gprs.attachgprs example sketch uses __TIMEOUT__:

#include <MKRGSM.h>

// PIN Number
#define PINNUMBER ""

// APN data
#define GPRS_APN       "GPRS_APN" // replace your GPRS APN
#define GPRS_LOGIN     "login"    // replace with your GPRS login
#define GPRS_PASSWORD  "password" // replace with your GPRS password


// initialize the library instance
GPRS gprs;
GSM gsmAccess;     // include a 'true' parameter for debug enabled
GSMServer server(80); // port 80 (http default)

// timeout
const unsigned long __TIMEOUT__ = 10*1000;

void setup()
{
  // initialize serial communications
  Serial.begin(9600);

  // connection state
  boolean notConnected = true;

  // Start GSM shield
  // If your SIM has PIN, pass it as a parameter of begin() in quotes
  while(notConnected)
  {
    if((gsmAccess.begin(PINNUMBER)==GSM_READY) &
        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD)==GPRS_READY))
      notConnected = false;
    else
    {
      Serial.println("Not connected");
      delay(1000);
    }
  }

  Serial.println("Connected to GPRS network");

  // start server
  server.begin();

  //Get IP.
  IPAddress LocalIP = gprs.getIPAddress();
  Serial.println("Server IP address=");
  Serial.println(LocalIP);
}

void loop() {


  // listen for incoming clients
  GSM3MobileClientService client = server.available();



  if (client)
  {  
    while (client.connected())
    {
      if (client.available())
      {
        Serial.println("Receiving request!");
        bool sendResponse = false;
        while(char c=client.read()) {
          if (c == '\n') sendResponse = true;
        }

     // if you've gotten to the end of the line (received a newline
     // character)
       if (sendResponse)
       {
          // send a standard http response header
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println();
          client.println("<html>");
          // output the value of each analog input pin
          for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
            client.print("analog input ");
            client.print(analogChannel);
            client.print(" is ");
            client.print(analogRead(analogChannel));
            client.println("<br />");      
          }
          client.println("</html>");
          //necessary delay
          delay(1000);
          client.stop();
        }
      }
    }
  }
}

I can't find anything that describes how these lines of code work and what the expected behaviour is once a timeout has been reached. If anyone has experience/has any ideas what on how to use these and what the difference is between the two, that would be very helpful!

[intstarep]

As long as you use

while (!connected) {`

it will wait forever for a signal