Subtitle problems

Since last week I experience problems with (Dutch) subtitles. Sometimes it works but most of the time I see different errors. Most of the time the errors are Check internet connection or refresh meta-data. I've restarted the app (Pro 2.2), my iPhone (5S on iOS 7.1), my router (Cisco Linksys EA6500) and my NAS (Synology DS112+). Before this issue I never experienced this problem.

A friend of me experienced the  same problem with Dutch subtitles: app (Pro 2.2), iPhone 5 (iOS 7.1), router (Linksys E4200) and NAS (Synology DS114).

I found a new problem caused tru the subtitles

For example

I'm playing Game.of.Thrones.S04E01.HDTV.x264-KILLERS.mp4 and (eng) from my NAS

At About 55 min with subtitles on it keeps given an error

without subs it plays like normal


i have had this with other video's as well mostly at the end

I have the same problem with my Apple TV2 (running aTV black).

Is there a known connection problem with If so, is there anything FireCore or we can do about this?