NVIDIA GameStream not working on Windows 10
The following working methods will help you to troubleshoot NVIDIA GameStream not working issue on Windows 10: 1] Logout and Login to GameStream Some users have reported that logging out and logging back again to the NVIDIA GameStream service fixed the issue. This is because with the re-login, the entire cache of the system and the service is rebuilt and any bad sectors of that data will be replaced with the fresh one and will fix this issue. 2] Uninstall and Reinstall NVIDIA drivers
You can use Display Driver Uninstaller to uninstall your NVIDIA Display Driver. After that, you can download & install the latest version of the NVIDIA Graphics Drivers. 3] Fix your network Your network can also be a source for in this issue. It is recommended for you to connect both of your devices to a 5 GHz WiFi networks. Also, make sure the WiFi strength is strong enough for both of the devices for the latency to go down. Reboot your router and change the WiFi channel that you are connected to fix this issue. 4] Update your NVIDIA SHIELD device Outdated software on the NVIDIA SHIELD device can also result in an issue like this. Hence, you can try to update its device driver and check if that brings in the compatible software to fix this issue mentioned above. All the best!