ios - Why keep pop up uialert even internet connection is good -

i had put request in viewdidload have internet connection still pop uialertview non stop , didn't return value. need put timeout longer time?

asiformdatarequest *request = [asiformdatarequest requestwithurl:url]; __unsafe_unretained asiformdatarequest *_request = request;  [request setrequestmethod:@"post"]; [request setpostvalue:@"admin_request_user_join_group" forkey:@"tag"]; [request setpostvalue:groupid forkey:@"group_id"]; [request setpostvalue:userid forkey:@"poster_user_id"]; [request setpostvalue:targetuserid forkey:@"target_user_id"]; [request setdelegate:self]; [request settimeoutseconds:30.0]; [request setshouldattemptpersistentconnection:no]; [request startasynchronous]; [request setcompletionblock:^(void){     nsinteger responsecode = [_request responsestatuscode];      if (responsecode == 200 || responsecode == 201 || responsecode == 202)     {         nsmutabledictionary *response = (nsmutabledictionary *)[[_request responsestring] jsonvalue];          nsinteger success = [[response objectforkey:@"success"] integervalue];          if (success == 1) {             nsmutabledictionary *dict = [myfriendarray objectatindex:sender.tag];             [dict setobject:@"0" forkey:@"join_group_status"];              [myfriendarray replaceobjectatindex:sender.tag withobject:dict];              nsindexpath *rowtoreload = [nsindexpath indexpathforrow:sender.tag insection:0];             nsarray* rowstoreload = [nsarray arraywithobjects:rowtoreload, nil];            }     } }];  [request setfailedblock:^(void){     uialertview *alert = [[uialertview alloc] initwithtitle:@"connection failed" message:[nsstring stringwithformat:nslocalizedstring(@"connection_failed", nil)] delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];     [alert show];   }]; 

asiformdatarequest *request = [asiformdatarequest requestwithurl:url]; __unsafe_unretained asiformdatarequest *_request = request;  [request setrequestmethod:@"post"]; [request setpostvalue:@"admin_request_user_join_group" forkey:@"tag"]; [request setpostvalue:groupid forkey:@"group_id"]; [request setpostvalue:userid forkey:@"poster_user_id"]; [request setpostvalue:targetuserid forkey:@"target_user_id"]; [request setdelegate:self]; [request settimeoutseconds:30.0]; [request setshouldattemptpersistentconnection:no]; [request startasynchronous]; [request setcompletionblock:^(void){     nsinteger responsecode = [_request responsestatuscode];      if (responsecode == 200 || responsecode == 201 || responsecode == 202)     {         nsmutabledictionary *response = (nsmutabledictionary *)[[_request responsestring] jsonvalue];          nsinteger success = [[response objectforkey:@"success"] integervalue];          if (success == 1) {             nsmutabledictionary *dict = [myfriendarray objectatindex:sender.tag];             [dict setobject:@"0" forkey:@"join_group_status"];              [myfriendarray replaceobjectatindex:sender.tag withobject:dict];              nsindexpath *rowtoreload = [nsindexpath indexpathforrow:sender.tag insection:0];             nsarray* rowstoreload = [nsarray arraywithobjects:rowtoreload, nil];            }     } [request setfailedblock:^(void){     uialertview *alert = [[uialertview alloc] initwithtitle:@"connection failed" message:[nsstring stringwithformat:nslocalizedstring(@"connection_failed", nil)] delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];     [alert show];   }];   }]; 

this might you