Very slow transfer speed

[cpt_paranoia]

Yes, similar issue and diagnostics as here:

Stuttering Video

Have you tested what @cpt_paranoia has suggested with a cat5e? That’s the best bet to know if either router or TV or MyCloud is abnormal. 100Mbps N rated wifi router or homeplug shouldn’t have stuttering with your normal vids unless your vids have very high bitrate or your network is congested heavily. I can stream 10GB 1080p from home to another TV located at someone else’s place without stuttering, just few seconds initial buffers (MyCloud->Internet->Wifi->SmartPhone->Cast->TV). This also wor…