Close and create new gprs connection

Legacy Open AT
1

Hello.

I have q2686. I write application which sends some data to server every 5 minutes, but for some reason connection was broken by mobile operator every ~8 hours. I cannot reconnect to GPRS. I spent 2 days and I cant figure it out…
Here is my code: (I delete http procedures)

#include "adl_global.h"

#include "wip.h"

s8 global_event;

/* bearer handle */ 
wip_bearer_t myBearer; 


/* bearer events handler */ 
void myHandler( wip_bearer_t br, s8 event, void *context) 
{ 
  global_event = event;
  switch( event) { 
  case WIP_BEV_IP_CONNECTED: 
    /*IP connectivity we can start IP application from here*/
    adl_atSendResponse ( ADL_AT_UNS, "\r\nGPRS on.\r\n" );

    
    break; 
  case WIP_BEV_STOPPED: 
    /*IP connectivity we can start IP application from here*/
    adl_atSendResponse ( ADL_AT_UNS, "\r\n bev stopped.\r\n" );

    wip_bearerClose( myBearer);  
    
    break; 
    
  case WIP_BEV_IP_DISCONNECTED: 
    /*stop IP application*/ 
    adl_atSendResponse ( ADL_AT_UNS, "\r\nGPRS stop.\r\n" ); 
    wip_bearerStop(myBearer);
   
    break; 
  /* other events: */ 
  adl_atSendResponse ( ADL_AT_UNS, "\r\nOther.\r\n" ); 
  default: 
    /*cannot start bearer: report error to higher levels*/
    adl_atSendResponse ( ADL_AT_UNS, "\r\nCannot start bearer.\r\n" );  
    break; 
  } 
} 


/* initialize and start GPRS bearer */ 
bool myConnectToGPRS( void) 
{ 
  if(wip_netInit() < 0)
  {
    adl_atSendResponse ( ADL_AT_UNS, "\r\nCannot net init.\r\n" );
    return FALSE;
    
  }
  adl_atSendResponse ( ADL_AT_UNS, "\r\nConnecting....\r\n" );
  /* open bearer and install our event handler */ 
  if( wip_bearerOpen( &myBearer, "GPRS", myHandler, NULL) != 0) { 
    /* cannot open bearer */ 
    adl_atSendResponse ( ADL_AT_UNS, "\r\nCannot open bearer.1\r\n" );
    return FALSE; 
  }
  /* configure GPRS interface */ 
  if( wip_bearerSetOpts ( myBearer, 
  WIP_BOPT_GPRS_APN,      "internet", 
  WIP_BOPT_LOGIN,    "mobitel", 
  WIP_BOPT_PASSWORD, "internet", 
  WIP_BOPT_END) != 0) { 
    /* cannot configure bearer */ 
    adl_atSendResponse ( ADL_AT_UNS, "\r\nCannot configure bearer.\r\n" );
    return FALSE; 
  } 
 
  /* start connection */ 
  if( wip_bearerStart( myBearer) != 0) { 
    /* cannot start bearer */ 
    adl_atSendResponse ( ADL_AT_UNS, "\r\nCannot start bearer.1\r\n" ); 
    return FALSE; 
  } 
 
  /* connection status will be reported to the event handler */ 
  return TRUE; 
}



//gprs
void GPRSHandler( u8 ID )
{
    if (global_event != WIP_BEV_IP_CONNECTED) {
        myConnectToGPRS();
    }
}


/***************************************************************************/
/*  Function   : adl_main                                                  */
/*-------------------------------------------------------------------------*/
/*  Object     : Customer application initialisation                       */
/*                                                                         */
/*-------------------------------------------------------------------------*/
/*  Variable Name     |IN |OUT|GLB|  Utilisation                           */
/*--------------------+---+---+---+----------------------------------------*/
/*  InitType          |   |   |   |  Application start mode reason         */
/*--------------------+---+---+---+----------------------------------------*/
/***************************************************************************/
void adl_main ( adl_InitType_e  InitType )
{
    TRACE (( 1, "Embedded : Appli Init" ));
    global_event = WIP_BEV_IP_DISCONNECTED;
    /* Set 1s cyclic timer */
    adl_tmrSubscribe ( TRUE, 200, ADL_TMR_TYPE_100MS, GPRSHandler );    
    
}

and here is resposne:

+WIND: 13

Connecting....

Cannot start bearer.1  (I do not know why... caused by wip_netInit()  )

GPRS on.

GPRS stop.

 bev stopped.

Cannot net init.

Cannot net init.

So… How to reconnect to GPRS. Reset module is not right answer (but works).

I simulate problem which appears every ~8 hours with reconnecting SIM card.

Thanks for answers