update:managed to solve without [routeTask retrieveDefaultRouteTaskParameters], but i have another very strange problem now, the delegate didSolveWithResult:(AGSRouteTaskResult*) executes but AGSRouteTaskResult variabile has all nil properties.. digging more into this ===============opened the IIS log looked for the request that solves the route and got the following:ArcGIS/rest/services/JOBS/NAServer/Route/solve?ignoreInvalidLocations=true&preserveLastStop=false&impedanceAttributeName=TimeCost&useTimeWindows=false&outputGeometryPrecision=5&outputGeometryPrecisionUnits=esriMeters&f=json&directionsTimeAttributeName=TimeCost&preserveFirstStop=true&outSR=4326&doNotLocateOnRestrictedElements=false&returnBarriers=false&stops={"geometryType":"esriGeometryPoint","features":[{"geometry":{"x":797884.8245282052,"y":3221991.655146945,"spatialReference":{"wkid":32638}},"attributes":{}},{"geometry":{"x":773665.8750000007,"y":3294393.499999999,"spatialReference":{"wkid":32638}},"attributes":{}}],"spatialReference":{"wkid":32638}}&directionsLanguage=en-US&findBestSequence=true&returnPolygonBarriers=false&useHierarchy=true&returnRoutes=true&returnDirections=false&returnStops=true&returnPolylineBarriers=false
now copying and pasting in the browser, returns the result normally without any problem..the question is.. why am i getting nil for all the properties of AGSRouteTaskResult ??this is very strange.. what is the difference between my NAServer and the ESRI online services http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Networki have MapServer with an NALayer embedded into it.. what could be the problem ? Message Size Limit ?? ESRI Staff please help..