Stuttering video files across wi-fi

Any way to fix this? My connection speed goes up to 300mps but the video distorts now and then.

300mbps doesn’t mean it’s dedicated for the streaming. There could be other devices on the network using the wifi bandwidth. Wired is best for hd streaming. 

So connect my WD Live to my cat6 cable then to the router thus accessing the WD cloud correct?

Generally cat5e is enough unless you have a distance setup but that’s the best, video streaming hiccups away…