Processor: Intel(R) Core(TM) i7-6700 CPU 3.

OS Version: Microsoft Windows 10 Home, 64 bit Tech Support Guy System Info Utility version 1.0.0.4 The problem of Cast to Device not working in Windows 10 could be due to a variety of reasons, ranging from Network Discovery or Media Streaming not being enabled on your computer to outdated and corrupted network drivers. Can I rule out connection speed as the cause of the slowness & look for some other cause or should I increase my connection speed? Cast to Device Not Working in Windows 10. In the old location I had a much faster speed (400Mbs vs 100Mbs) but I was assured by the tech person at our new place that 100 Mbs should be all that I need. I frequently use the Windows 10 'Cast To' option to play videos on my Samsung Smart TV & the the speed was flawless in our old house but here in the new house it spends a long time initially loading & then stops every 10 seconds to load some more. We just moved to a new location & my PC is attached to the same devices in the new place.