synchronize mobile cache problem?

[Jitendrudulacaraju]

I am trying to sync between the mobile cache and a secured rest map service for mobile. Though I do not get error, but nothing is sync, no results. What's wrong in code.

MobileCacheSyncResults MobileSyncResults;
            MobileSyncResults = new MobileCacheSyncResults();
            try
            {
                MobileServiceConnection MobileServiceConnection;
                MobileServiceConnection = new MobileServiceConnection();
                //MobileServiceConnection.TokenCredential = new ESRI.ArcGIS.Mobile.CatalogServices.TokenCredential();
                //MobileServiceConnection.TokenCredential.UserName = @"xxxx";
                //MobileServiceConnection.TokenCredential.Password = @"xxx2";


                MobileServiceConnection.Url=@"http://xxxx/ArcGIS/rest/services/xx/xx/MobileServer?token=6U0ieIXOpLa6X0bnxaCrxFij7b-w252hF08jysacxPiqnXIB9ZFEZDO2a6jrKT45JoepaEXfbi9cl-Ij8Z7bKYwxdph48uBPW-mz9rN4wIl_u1i3FOJ_BVyMAx5gBc4A4uuFouwI-2CIi_cnt6gk0m4xB8PU4BjFbmQ1xJ1ovo4";


                MobileCache MobileCache = CoM_MobileInfrastructureClass.Resources.PassFeatureReader.MobileCache;


                MobileServiceConnection.WebClientProtocolType = WebClientProtocolType.SoapWebService;


                //// Use MobileCacheSyncAgent to download data from server
                MobileServiceConnection.CreateCache(MobileCache);
                MobileCache.Open();


                MobileCacheSyncAgent SyncAgent;
                SyncAgent = new MobileCacheSyncAgent(MobileCache, MobileServiceConnection);


              
                //// Open MobileCache and sync
                SyncResults results =  SyncAgent.Synchronize();
                ESRI.ArcGIS.Mobile.Geometries.Envelope evp = MobileCache.GetExtent();
                
                MobileSyncResults = SyncAgent.DownloadExtent(evp, 0, 1000000);