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Old 04-05-2017, 03:04 AM
JohnnyEdwards JohnnyEdwards is offline
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Join Date: Dec 2011
Posts: 846
Default Fire TV stuttering MKV playback via Plex

Summary: Plex on Amazon Fire TV doesn't play MKV? Here will show you a MKV to Amazon Fire TV converter to convert MKV to H.264 MP4 to play on Fire TV via Plex.

Learn more: Plex Supported TV Modles | Fire TV Media Formats | Plex Media Formats | Plex Issues and Solutions | Add Movies to Plex

Question: "Dear Plex-community, I installed the Plex-Server on my Sinology DS212j-NAS and a amazon Fire TV in order to watch my media on TV. Thing is, it will *only* play .mp4-files. When trying to play another format (i.e. .mkv) I get the following error-message: "It is not possible to play this video as no connection to the required Server could be found. I am far from being an IT-expert, but to me this error-message doesn't make sense as the connection to the server is definetly established. So I guess there is another problem with respect to the file-format... You may be my last resort of help! I hope that this pretty basic information is sufficient. Thanks in advance! "- from


Solution 1:Changing the following settings on the Amazon Fire TV Plex App maybe allow you to play mkv files.

Plex > Options > Settings > Device media profile > Media profile > Select "Force Direct Play".
Then uncheck all the "Device supports *" options.

However, the feedback unveils that this method get MKV files to play on Fire TV via Plex but no sound....(amazon fire stick). Because if you force it to Direct Play, and it is an MKV with AC3 audio, you won't get sound. You can direct play MKV's with AAC audio though. Honestly your best bet if you can't transcode, is to use an External player with the app, or as was previously suggested re-encode all your content to MP4 with AAC audio.

Solution 2:That error message could definitely be improved, but your NAS cannot transcode which it would need to do to play the formats/codecs the fire TV does not support natively via HLS streaming. Here is more info on NAS and which has a compatibility list of NASs that plex can be installed which includes details on which can transcode or not:

Solution 3:Simply convert your MKV files to MP4 with H.264 video and AAC audio with a MKV to MP4 converter so that you can play MKV on Amazon Fire TV with Plex.

How to Convert MKV to H.264 MP4 with AAC Audio for Fire TV and Plex?

Pavtube Video Converter Ultimate is the utility for you. With it, you can fast convert MKV to H.264 MP4 that can be easily played with Plex in Amazon Fire TV. Besides convert MKV to Amazon Fire TV, it also helps to convert H.265, 4K, 3D, AVI, MOV, WMV, RMVB, MTS, MXF, FLV, M4V, XAVC, VOB, DVD, 4K Blu-ray, Blu-ray, ISO, Video_TS, BDMV, M2TS, MTS, MP4, etc. to Amazon Fire TV, Fire TV 2, Fire TV Stick (2) and Plex supported video format. Moreover, no loss of quality will occur after the conversion. Some helpful edition functions are also available including trim and crop, merge and split, add special effects, subtitle edition, etc.

Free download and install

Other Download:
- Pavtube old official address:
- Cnet Download:

Step 1: Add MKV Files

Launch the MKV to Amazon Fire TV Converter. Click the "Files" or "Add Video/Audio" button to load MKV videos for converting.

Step 2: Choose output format

Click Format bar and choose MP4 from HD Video, which can be recognized by Amazon Fire TV perfectly.

Tip: Simply click Settings bar and you can tweak the "settings" to your satisfaction and even save it as preset. You can reset the output video and make sure the output audio codec to AAC.

Best Settings for Plex

Step 3: Start to convert MKV to Amazon Fire TV for Plex

Click the "Convert" button to start video conversion. After the conversion, you can get the converted videos by clicking the Open button.

Afterwards, you can stream and play MKV videos on Amazon Fire TV via Plex easily with HD quality.

Plex Related Articles:
Setup Plex on Roku | Use Plex with QNAP | Fix Constant Video Buffering on Plex | AAC 5.1 audio in Plex | Choose Right Streaming Quality in Plex

Play DVD on ATV Via Plex | Play 3D MVC movie on ATV via Plex | Play H.265 on ATV via Plex | MP4 to ATV via Plex | 3D Video to ATV via Plex

Blu-ray to Plasma TV via Plex | H.265 to Sony TV via Plex | Video_TS to Samsung TV via Plex | XAVC S to 4K TV via Plex

Blu-ray to Plex | DVD to Plex | H.265 to Plex | Yify movies to Plex | AVI to Plex | BDMV to Plex | Tivo to Plex | MKV to Plex | MP4 to Plex | WTV to Plex | WMV to Plex | M2TS to Plex | MOV to Plex | VOB to Plex |

Video_TS to Roku via Plex | 4K Video to Roku via Plex | MKV to Roku via Plex | BDMV to Roku via Plex | Blu-ray to Tivo Bolt via Plex | DVD to ReadyNAS Pro 6 via Plex

Watch DVD on PS4 via Plex | Watch Blu-ray on PS4 via Plex | AVI to PS4 Pro via Plex | H.265 to PS4 via Plex | Stream Video to Wii U via Plex

Extract SRT subtitles for Plex | Extract Individual Chapters for Plex

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