Please make sure you meet the network requirements to run GeForce NOW:
" NVIDIA SHIELD portable, tablet, or Android TV with the latest software update.
" The latest SHIELD Hub app from the Google Play Store.
" A minimum bandwidth of 10Mbps is required to stream games on GeForce NOW at 720p and 60fps. A minimum bandwidth of 25 Mbps is required for 1080p and 60fps quality.
" Home network with 80 ms or less ping time to a GeForce NOW data center.
" NVIDIA SHIELD Ready 5 GHz Wi-Fi router http://shield.nvidia.com/routers.