Problems with loading, subtitles, and media server crashing

[Norman]

I'm having a few problems. The first is that when I play a movie greater than a few gigabytes or so, it intermittently stops and says "loading" on the screen of my UN40F6400. I'm not sure if this is happening because of Mezzmo, my router, my computer, or my TV. I don't think it's my router (Netgear R6300), since on Netgear's website it says this about the product: "Get 3x faster access and more reliable streaming for your home computers and mobile devices. Beamforming+ and dual band technology makes your gaming more extreme and your HD streaming smoother." My computer shows no signs of slowing, and no transcoding is going on. Why is this happening?

The second and third problems are that the Mezzmo media server crashes after I return to my computer after an extended period of time, and subtitle formatting (such as color, location on screen, etc) are not preserved.

Any fixes?