Extremely choppy playback on Synology

Plex Players Desktop Players
1

Synology: DS918+
Server Version#: 1.19.3.2793 (but problem was also present on previous version)
Player Version#: 1.10.0.1208 Plex for Windows (but problem is also on iPad)

A couple of days ago I noticed that some of my movies and TV series we’re unplayable. Playback is so choppy it is useless. And by choppy I mean that it shows me 2 seconds of movie and then pauses for 2-3 seconds before giving me another 2 seconds of movie… and so on.

Looking and the network and server load in Plex show something odd (I think).

Plex02
Plex02795×629 41.8 KB

Playing a movie that works will give me a network spike in the beginning and then many smaller bumps along the way. This can be seen above at time 1:30m and about 30 seconds forward.

Playing a movie that does not work gives me a continuous massive load on the network. As can be seen from about 55 seconds on the above.

Now here is something more “funny”. If I pause the playback it will continue to use the network and the system resources of the Synology.

Plex04
Plex04788×635 34.4 KB

This can be seen in the above. This is a graph showing a movie that has been paused for more than 2 minutes. It will even “drain” the resources so much it will stop displaying the CPU and system load on the Synology all together. And it’s not even playing anything :thinking: :grimacing:

If I disable “Secure connections” I can get the movie to play fine. But network and CPU graphs still look like the above.

If I play the movies directly through say Windows Media Player they work just fine.
Am I missing something here or what could be wrong?

2

Looking at other threads about this you’ll probably want logs… so here you go :smile:
MovieXML.txt (36.7 KB) Plex Media Server Logs_2020-05-17_14-04-22.zip (3.3 MB)

3

Please turn off VERBOSE logging and recreate/recapture.
DEBUG is on by default with VERBOSE off by default.

VERBOSE makes it impossible to diagnose most issues.

4

Alrighty - new logs attached.
Plex Media Server Logs_2020-05-17_16-36-53.zip (3.3 MB)

5

Did you remember to SAVE after turning VERBOSE off again?

I am only getting VERBOSE packet exchange logging

May 17, 2020 16:36:51.662 [0x7f06cae6b700] VERBOSE - [IDLE] Adding (1->2) work item http_download - /library/parts/49287/1529143312/file.mp4?X-Plex-Session-Identifier=cxkvsiqja4u4tiajwdbdkgm8&X-Plex-Product=Plex%20for%20Windows&X-Plex-Version=1.10.0.1208-daa6b641&X-Plex-Client-Identifier=z5u7kikkgl4uleoy0cntwlpo&X-Plex-Platform=windows&X-Plex-Platform-Version=10.0.18363&X-Plex-Sync-Version=2&X-Plex-Features=external-media%2Cindirect-media&X-Plex-Model=standalone&X-Plex-Device-Name=Neodym&X-Plex-Device-Screen-Resolution=1916x1368%2C3440x1440&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx&X-Plex-Language=da&Accept-Language=da
May 17, 2020 16:36:51.662 [0x7f06cae6b700] VERBOSE - [IDLE] * http_download - /library/parts/49287/1529143312/file.mp4?X-Plex-Session-Identifier=cxkvsiqja4u4tiajwdbdkgm8&X-Plex-Product=Plex%20for%20Windows&X-Plex-Version=1.10.0.1208-daa6b641&X-Plex-Client-Identifier=z5u7kikkgl4uleoy0cntwlpo&X-Plex-Platform=windows&X-Plex-Platform-Version=10.0.18363&X-Plex-Sync-Version=2&X-Plex-Features=external-media%2Cindirect-media&X-Plex-Model=standalone&X-Plex-Device-Name=Neodym&X-Plex-Device-Screen-Resolution=1916x1368%2C3440x1440&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx&X-Plex-Language=da&Accept-Language=da - 2 active item(s)
May 17, 2020 16:36:51.662 [0x7f06cae6b700] VERBOSE - [IDLE] * http_download - /player/proxy/poll?deviceClass=pc&protocolVersion=3&protocolCapabilities=timeline%2Cplayback%2Cnavigation%2Cmirror%2Cplayqueues&timeout=1&X-Plex-Product=Plex%20for%20Windows&X-Plex-Version=1.10.0.1208-daa6b641&X-Plex-Client-Identifier=z5u7kikkgl4uleoy0cntwlpo&X-Plex-Platform=windows&X-Plex-Platform-Version=10.0.18363&X-Plex-Sync-Version=2&X-Plex-Features=external-media%2Cindirect-media&X-Plex-Model=standalone&X-Plex-Device-Name=Neodym&X-Plex-Device-Screen-Resolution=1916x1368%2C3440x1440&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx&X-Plex-Language=da - 1 active item(s)
May 17, 2020 16:36:51.662 [0x7f06cae6b700] DEBUG - Content-Length of /volume4/Public/Media/Film/Divergent.mp4 is 4990747590 (of total: 5027454595).
May 17, 2020 16:36:51.665 [0x7f0703423700] DEBUG - Failed to stream media, client probably disconnected after 2834432 bytes: 104 - Connection reset by peer
May 17, 2020 16:36:51.665 [0x7f0703423700] DEBUG - Completed after connection close: [10.0.1.102:64102] 206 GET /library/parts/49287/1529143312/file.mp4 (10 live) TLS 95ms 2834432 bytes (range: bytes=28342062-) 
May 17, 2020 16:36:51.666 [0x7f0703423700] VERBOSE - [IDLE] Removing (2->1) work item http_download - /library/parts/49287/1529143312/file.mp4?X-Plex-Session-Identifier=cxkvsiqja4u4tiajwdbdkgm8&X-Plex-Product=Plex%20for%20Windows&X-Plex-Version=1.10.0.1208-daa6b641&X-Plex-Client-Identifier=z5u7kikkgl4uleoy0cntwlpo&X-Plex-Platform=windows&X-Plex-Platform-Version=10.0.18363&X-Plex-Sync-Version=2&X-Plex-Features=external-media%2Cindirect-media&X-Plex-Model=standalone&X-Plex-Device-Name=Neodym&X-Plex-Device-Screen-Resolution=1916x1368%2C3440x1440&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx&X-Plex-Language=da&Accept-Language=da
May 17, 2020 16:36:51.666 [0x7f0703423700] VERBOSE - [IDLE] * http_download - /library/parts/49287/1529143312/file.mp4?X-Plex-Session-Identifier=cxkvsiqja4u4tiajwdbdkgm8&X-Plex-Product=Plex%20for%20Windows&X-Plex-Version=1.10.0.1208-daa6b641&X-Plex-Client-Identifier=z5u7kikkgl4uleoy0cntwlpo&X-Plex-Platform=windows&X-Plex-Platform-Version=10.0.18363&X-Plex-Sync-Version=2&X-Plex-Features=external-media%2Cindirect-media&X-Plex-Model=standalone&X-Plex-Device-Name=Neodym&X-Plex-Device-Screen-Resolution=1916x1368%2C3440x1440&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx&X-Plex-Language=da&Accept-Language=da - 1 active item(s)
May 17, 2020 16:36:51.666 [0x7f0703423700] VERBOSE - [IDLE] * http_download - /player/proxy/poll?deviceClass=pc&protocolVersion=3&protocolCapabilities=timeline%2Cplayback%2Cnavigation%2Cmirror%2Cplayqueues&timeout=1&X-Plex-Product=Plex%20for%20Windows&X-Plex-Version=1.10.0.1208-daa6b641&X-Plex-Client-Identifier=z5u7kikkgl4uleoy0cntwlpo&X-Plex-Platform=windows&X-Plex-Platform-Version=10.0.18363&X-Plex-Sync-Version=2&X-Plex-Features=external-media%2Cindirect-media&X-Plex-Model=standalone&X-Plex-Device-Name=Neodym&X-Plex-Device-Screen-Resolution=1916x1368%2C3440x1440&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx&X-Plex-Language=da - 1 active item(s)
May 17, 2020 16:36:51.672 [0x7f0703423700] VERBOSE - Auth: We found auth token (xxxxxxxxxxxxxxxxxxxx), enabling token-based authentication.
May 17, 2020 16:36:51.672 [0x7f0703423700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 17, 2020 16:36:51.672 [0x7f0703423700] VERBOSE - Auth: Came in with a super-token, authorization succeeded.
May 17, 2020 16:36:51.672 [0x7f06cb735700] DEBUG - Request: [10.0.1.102:63974 (Subnet)] GET /diagnostics/logs (11 live) TLS GZIP Signed-in Token (jan@jan-skinnerup.dk)
May 17, 2020 16:36:51.672 [0x7f06cb735700] VERBOSE -  * Accept => text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
May 17, 2020 16:36:51.672 [0x7f06cb735700] VERBOSE -  * Accept-Encoding => gzip, deflate, br
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Accept-Language => en-US,en;q=0.9,da;q=0.8,nb;q=0.7,fr;q=0.6
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Connection => keep-alive
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Host => 10-0-1-30.4b812ac0e1cf43ce86f4ecf5ffa5c089.plex.direct:32400
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Sec-Fetch-Dest => document
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Sec-Fetch-Mode => navigate
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Sec-Fetch-Site => none
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Sec-Fetch-User => ?1
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * Upgrade-Insecure-Requests => 1
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * User-Agent => Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * X-Plex-Token => xxxxxxxxxxxxxxxxxxxx
May 17, 2020 16:36:51.673 [0x7f06cb735700] VERBOSE -  * X-Plex-Token => xxxxxxxxxxxxxxxxxxxx
May 17, 2020 16:36:51.673 [0x7f06cb735700] DEBUG - Diagnostics: Building logfile zip

In this snippet, there is one thing

May 17, 2020 16:36:51.662 [0x7f06cae6b700] DEBUG - Content-Length of /volume4/Public/Media/Film/Divergent.mp4 is 4990747590 (of total: 5027454595).
May 17, 2020 16:36:51.665 [0x7f0703423700] DEBUG - Failed to stream media, client probably disconnected after 2834432 bytes: 104 - Connection reset by peer
May 17, 2020 16:36:51.665 [0x7f0703423700] DEBUG - Completed after connection close: [10.0.1.102:64102] 206 GET /library/parts/49287/1529143312/file.mp4 (10 live) TLS 95ms 2834432 bytes (range: bytes=28342062-)
6

Yes I did SAVE… and I double checked. Debug level is set to “Enabled” and NOT “Verbose”.
But just for the fun of it - here is a third set of logs :slightly_smiling_face:
Plex Media Server Logs_2020-05-17_17-24-20.zip (3.2 MB)

7

@JanSkinnerup

You’re changing the setting in the wrong location.

You changed it for Plex Web.

You need to change the setting for the Plex Server, in Settings -> General. Click Show Advanced if necessary. See screenshot below.

After you change the setting, re-create the problem so the logs can capture the necessary info.

Then pull & post the zip file.

FYI, if you want to verify, look at Plex Media Server.log inside the zip file. If verbose is enabled, about 85% of the lines will contain “VERBOSE” after the timestamp. The log files are a fixed size and wrap from .log -> .1.log -> … -> .5.log -> bit bucket. With verbose enabled the files wrap very quickly and meaningful information is often pushed out. Also, with ~85% unnecessary information, it makes it very hard to search for meaningful lines (too much chaff, not enough wheat).

Screenshot (371)
Screenshot (371)896×260 258 KB

8

@FordGuy61 Ah… I see… whadda ya know… thanks for the heads up! :smile:

Ok, so I’ve changed the setting in the right place and here are new logs. Looking at the specified log as you mentioned shows me only DEBUG after I made the change :slightly_smiling_face:
Plex Media Server Logs_2020-05-17_21-31-22.zip (3.2 MB)

I also see a lot of “connection reset by peer” lines…

9

Following. I have a similar issue. It only happens with older SD content.

10

This is not older or SD content with me :slightly_smiling_face:

11

Problem is still there. Ran into a few other files tonight with the same problem.

Looking at the log I see a lot of these:
Failed to stream media, client probably disconnected after 753664 bytes: 104 - Connection reset by peer.

Again - playing through Windows Media player is no problem.

12

Which thread should we be in?

13

Yes - I see there are more threads about this issue now :slightly_smiling_face:

In another thread you mentioned link aggregation. Yes - I have that on my Synology. It’s patched into a Ubiquiti 48 port PoE switch with appropriate link aggregation on the two ports connected to the Synology. I don’t see any errors either on the Synology or the UBNT setup.

I’ve attached debug logs.

Fast & Furious 6 = problem
Fast & Furious 5 = no problem

I’ve also noticed that turning off “Secure connections” and restarting the Plex player in Windows will let me play the movie. I don’t know if that makes sense… but it works:

Secure connection required = problem
Secure connection preferred = problem
Secure connection disabled = no problem
(These different tests are not in the logs).

Plex Media Server Logs_2020-05-23_22-26-44.zip (4.1 MB)

14

I opened your logs, searched for ERROR , and found.

  1. It’s losing connectivity but recovering after 15 second reset
deviceClass=pc&protocolVersion=3&protocolCapabilities=timeline%2Cplayback%2Cnavigation%2Cmirror%2Cplayqueues&timeout=1 (4 live) TLS GZIP Signed-in Token (jan@jan-skinnerup.dk)
May 23, 2020 18:30:10.637 [0x7f57020b0700] DEBUG - Content-Length is -1 (of total: -1).
May 23, 2020 18:30:26.555 [0x7f570268c700] DEBUG - EventSource: Failure in IdleTimeout (0 - Success).
May 23, 2020 18:30:26.555 [0x7f570268c700] DEBUG - MyPlex: We appear to have lost Internet connectivity, resetting device URL cache.
May 23, 2020 18:30:26.555 [0x7f570268c700] ERROR - EventSource: Retrying in 15 seconds.
May 23, 2020 18:30:30.638 [0x7f570239e700] DEBUG - Completed: [10.0.1.102:50192] 200 GET /player/proxy/poll?deviceClass=pc&protocolVersion=3&protocolCapabilities=timeline%2Cplayback%2Cnavigation%2Cmirror%2Cplayqueues&timeout=1 (4 live) TLS GZIP 20000ms 5 bytes (pipelined: 68)
May 23, 2020 18:30:30.642 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 18:30:30.642 [0x7f57020b0700] DEBUG - Request: [10.0.1.102:50192 (Subnet)] GET /player/proxy/poll?deviceClass=pc&protocolVersion=3&protocolCapabilities=timeline%2Cplayback%2Cnavigation%2Cmirror%2Cplayqueues&timeout=1 (4 live) TLS GZIP Signed-in Token (jan@jan-skinnerup.dk)
May 23, 2020 18:30:30.642 [0x7f57020b0700] DEBUG - Content-Length is -1 (of total: -1).
May 23, 2020 18:30:41.555 [0x7f570268c700] DEBUG - EventSource: Resolving 139.162.158.105 port 443
May 23, 2020 18:30:41.555 [0x7f570268c700] DEBUG - EventSource: Resolved 139.162.158.105 to 139.162.158.105
May 23, 2020 18:30:41.612 [0x7f570239e700] DEBUG - EventSource: Connected in 39 ms.
May 23, 2020 18:30:41.612 [0x7f570239e700] DEBUG - EventSource: Wrote data, reading reply.
May 23, 2020 18:30:41.741 [0x7f570268c700] DEBUG - EventSource: Read HTTP reply header.
May 23, 2020 18:30:41.741 [0x7f570268c700] DEBUG - MyPlex: We appear to have regained Internet connectivity.
May 23, 2020 18:30:41.743 [0x7f570268c700] DEBUG - PublicAddressManager: Obtaining public address and mapping port.
May 23, 2020 18:30:41.743 [0x7f5711a9c700] DEBUG - PublicAddressManager: Obtaining public IP.
May 23, 2020 18:30:41.743 [0x7f5711a9c700] DEBUG - HTTP requesting GET http://plex.tv/pms/:/ip
May 23, 2020 18:30:41.744 [0x7f570268c700] DEBUG - MyPlex: Requesting reachability check.
  1. The player / connection
May 23, 2020 22:25:24.415 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:24.416 [0x7f56b6b7d700] DEBUG - Request: [10.0.1.102:54952 (Subnet)] GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=4861458582-) 
May 23, 2020 22:25:24.421 [0x7f56b6b7d700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 5.mp4 is 4665090 (of total: 4866123672).
May 23, 2020 22:25:24.424 [0x7f570268c700] DEBUG - Failed to stream media, client probably disconnected after 2998272 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:24.424 [0x7f570268c700] DEBUG - Completed after connection close: [10.0.1.102:54951] 206 GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS 126ms 2998272 bytes (range: bytes=0-) 
May 23, 2020 22:25:24.476 [0x7f570268c700] DEBUG - Completed: [10.0.1.102:54952] 206 GET /library/parts/57899/1541895175/file.mp4 (10 live) TLS 60ms 4665090 bytes (range: bytes=4861458582-) 
May 23, 2020 22:25:25.293 [0x7f56b6e6b700] DEBUG - Augment: Found a provider match for 'Fast Five'.

and further

May 23, 2020 22:25:28.017 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:28.018 [0x7f56d5fc5700] DEBUG - Request: [10.0.1.102:54968 (Subnet)] GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=19280694-) 
May 23, 2020 22:25:28.025 [0x7f56d5fc5700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 5.mp4 is 4846842978 (of total: 4866123672).
May 23, 2020 22:25:28.027 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 638976 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:28.027 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:54967] 206 GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS 85ms 638976 bytes (range: bytes=5091-) 
May 23, 2020 22:25:28.099 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:28.100 [0x7f5711a9c700] DEBUG - Request: [10.0.1.102:54969 (Subnet)] GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=5093-) 
May 23, 2020 22:25:28.105 [0x7f5711a9c700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 5.mp4 is 4866118579 (of total: 4866123672).
May 23, 2020 22:25:28.108 [0x7f570268c700] DEBUG - Failed to stream media, client probably disconnected after 3293184 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:28.108 [0x7f570268c700] DEBUG - Completed after connection close: [10.0.1.102:54968] 206 GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS 90ms 3293184 bytes (range: bytes=19280694-) 
May 23, 2020 22:25:28.182 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:28.182 [0x7f56d65a1700] DEBUG - Request: [10.0.1.102:54970 (Subnet)] GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=19288374-) 
May 23, 2020 22:25:28.188 [0x7f56d65a1700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 5.mp4 is 4846835298 (of total: 4866123672).
May 23, 2020 22:25:28.190 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 3014656 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:28.190 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:54969] 206 GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS 90ms 3014656 bytes (range: bytes=5093-) 
May 23, 2020 22:25:28.269 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:28.269 [0x7f57017e6700] DEBUG - Request: [10.0.1.102:54971 (Subnet)] GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=5839-) 
May 23, 2020 22:25:28.277 [0x7f57017e6700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 5.mp4 is 4866117833 (of total: 4866123672).
May 23, 2020 22:25:28.279 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 4947968 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:28.279 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:54970] 206 GET /library/parts/57899/1541895175/file.mp4 (11 live) TLS 96ms 4947968 bytes (range: bytes=19288374-)

What is the player? The windows app ? It says “Standalone”.

May 23, 2020 22:25:34.318 [0x7f56b6b7d700] ERROR - Unable to find client profile for device; platform=windows, platformVersion=10.0.18363, device=, model=standalone

What if you play from a browser?

15

Even further down…

This is entirely network/player end. It’s dropping/forcing closed the TCP/IP connection.

May 23, 2020 22:25:57.917 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 3162112 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:57.917 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:55056] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 88ms 3162112 bytes (range: bytes=89227-) 
May 23, 2020 22:25:57.990 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:57.990 [0x7f56b62b3700] DEBUG - Request: [10.0.1.102:55059 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=89296-) 
May 23, 2020 22:25:57.997 [0x7f56b62b3700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5111494376 (of total: 5111583672).
May 23, 2020 22:25:58.000 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 2883584 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.000 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:55057] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 91ms 2883584 bytes (range: bytes=666519-) 
May 23, 2020 22:25:58.079 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:58.079 [0x7f56b6b7d700] DEBUG - Request: [10.0.1.102:55060 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=666701-) 
May 23, 2020 22:25:58.085 [0x7f56b6b7d700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5110916971 (of total: 5111583672).
May 23, 2020 22:25:58.088 [0x7f570268c700] DEBUG - Failed to stream media, client probably disconnected after 2998272 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.088 [0x7f570268c700] DEBUG - Completed after connection close: [10.0.1.102:55059] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 97ms 2998272 bytes (range: bytes=89296-) 
May 23, 2020 22:25:58.169 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:58.169 [0x7f56d59e9700] DEBUG - Request: [10.0.1.102:55061 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=89381-) 
May 23, 2020 22:25:58.176 [0x7f56d59e9700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5111494291 (of total: 5111583672).
May 23, 2020 22:25:58.182 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 2932736 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.182 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:55060] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 102ms 2932736 bytes (range: bytes=666701-) 
May 23, 2020 22:25:58.271 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:58.271 [0x7f56d6e6b700] DEBUG - Request: [10.0.1.102:55062 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=666873-) 
May 23, 2020 22:25:58.278 [0x7f56d6e6b700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5110916799 (of total: 5111583672).
May 23, 2020 22:25:58.281 [0x7f570268c700] DEBUG - Failed to stream media, client probably disconnected after 753664 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.281 [0x7f570268c700] DEBUG - Completed after connection close: [10.0.1.102:55061] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 112ms 753664 bytes (range: bytes=89381-) 
May 23, 2020 22:25:58.367 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:58.367 [0x7f5711a9c700] DEBUG - Request: [10.0.1.102:55063 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=89479-) 
May 23, 2020 22:25:58.374 [0x7f5711a9c700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5111494193 (of total: 5111583672).
May 23, 2020 22:25:58.377 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 3080192 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.377 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:55062] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 105ms 3080192 bytes (range: bytes=666873-) 
May 23, 2020 22:25:58.456 [0x7f570268c700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:58.456 [0x7f56d688f700] DEBUG - Request: [10.0.1.102:55064 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=667055-) 
May 23, 2020 22:25:58.462 [0x7f56d688f700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5110916617 (of total: 5111583672).
May 23, 2020 22:25:58.464 [0x7f570268c700] DEBUG - Failed to stream media, client probably disconnected after 3014656 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.464 [0x7f570268c700] DEBUG - Completed after connection close: [10.0.1.102:55063] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 96ms 3014656 bytes (range: bytes=89479-) 
May 23, 2020 22:25:58.541 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
May 23, 2020 22:25:58.541 [0x7f56d5fc5700] DEBUG - Request: [10.0.1.102:55065 (Subnet)] GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS Signed-in Token (jan@jan-skinnerup.dk) (range: bytes=89605-) 
May 23, 2020 22:25:58.547 [0x7f56d5fc5700] DEBUG - Content-Length of /volume4/Public/Media/Film/Fast & Furious 7.mp4 is 5111494067 (of total: 5111583672).
May 23, 2020 22:25:58.550 [0x7f570239e700] DEBUG - Failed to stream media, client probably disconnected after 2899968 bytes: 104 - Connection reset by peer
May 23, 2020 22:25:58.550 [0x7f570239e700] DEBUG - Completed after connection close: [10.0.1.102:55064] 206 GET /library/parts/57901/1541903038/file.mp4 (11 live) TLS 94ms 2899968 bytes (range: bytes=667055-) 
May 23, 2020 22:25:58.633 [0x7f570239e700] DEBUG - Auth: authenticated user 1 as jan@jan-skinnerup.dk
16

The player is Plex for Windows…

Plex4Windows-jpg
Plex4Windows-jpg707×707 44.2 KB

17

OK, did some further testing…

iOS on iPhone from remote network = NO problem (HW transcoding).
iOS on iPhone on local network wi-fi = NO problem (direct play).
iOS on iPad on local network wi-fi = NO problem (direct play).
tvOS on Apple TV 4k on local network (wired) = NO Problem (direct play)
Plex for Windows on PC on local network (wired) = Problem (direct play).
Chrome browser on Windows PC on local network (wired) = NO problem (direct play).
Yes… same PC :thinking:

Hopefully some of this is helpful because it makes no sense to me :thinking:

EDIT #1: Changed iPad from “problem” to “NO problem” after update of app in app store :slightly_smiling_face:
EDIT #2: Changed AppleTV from “problem” to “NO problem” after update of app in app store :smile:

18

Sounds like none of this is a Synology problem.

Moving to Windows player.

19

So many people are complaining about stuttering on Plex for Windows for about 1 month now, and they have not done anything about it. Look at the other topics in the Plex Players section.

20

I don’t know about the “not doing anything about it”.

I CAN however verify that it is still a problem even though there has been a couple of updates to the Plex for Windows app within the past few weeks :wink: