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Thread: Periodic disconnects during playback

  1. #1

    Question Periodic disconnects during playback

    Hi all,

    I'm hoping someone can help me - I'm experiencing fairly regular disconnects during playback. This is happening on two separate TVs, and also happens whether they are connected to the network via WiFi or via a LAN cable.

    There's a link to the rather large log file below. The log file covers the previous few days (including various disconnected) but a known disconnect happened yesterday (Apr 30) at around the 16:16 time.

    Sometimes, I can wait a few seconds and start the playback again. Other times I have to restart the Mezzmo service in order to to continue otherwise the TV just can't see the server.

    Any help would be appreciated, or I can provide any further information.

    Thank you,
    David.

    Log file here
    Thanks,
    Frantic.

  2. #2
    Join Date
    Sep 2009
    Posts
    2,260

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    Just before the disconnect from the TV Mezzmo server receives UPnP traffic from your router. Can you please try disabling UPnP in your router to see if this helps?

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

  3. #3

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    Thanks for the reply Peter.

    Unfortunately, my router doesn't have uPnP as a configurable option. If you think that's a likely cause then I may look at purchasing a different router.
    Thanks,
    Frantic.

  4. #4
    Join Date
    Jun 2012
    Posts
    457

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    Do all of the wired devices plug into your Wi-Fi router or are they plugged into a separate switch ?

  5. #5
    Join Date
    Sep 2009
    Posts
    2,260

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    Quote Originally Posted by FranticOrange View Post
    Thanks for the reply Peter.

    Unfortunately, my router doesn't have uPnP as a configurable option. If you think that's a likely cause then I may look at purchasing a different router.
    Turning off uPnP is a common troubleshooting step, I wouldn't purchase a new router if it does not have a setting to turn this off. Another troubleshooting step is to try replacing the network cable to the device with another network cable to see if this helps. The files are being streamed without transcoding so it is either a problem of bandwidth or it is a problem where the TV does not get a Notify message from the server within the default 30 minutes of the advertise time and goes looking for it again. You can try changing the SSDP Advertisement interval in Media Server Settings in Mezzmo to 86400 to see if this helps.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

  6. #6

    Default

    Quote Originally Posted by Peter View Post
    Turning off uPnP is a common troubleshooting step, I wouldn't purchase a new router if it does not have a setting to turn this off. Another troubleshooting step is to try replacing the network cable to the device with another network cable to see if this helps. The files are being streamed without transcoding so it is either a problem of bandwidth or it is a problem where the TV does not get a Notify message from the server within the default 30 minutes of the advertise time and goes looking for it again. You can try changing the SSDP Advertisement interval in Media Server Settings in Mezzmo to 86400 to see if this helps.
    Ah, I went and bought a new router anyway as the lack of diagnostic features available on my ISP's was limiting. Some further information for you:

    - There is now no network cable, all of my devices run off the WiFi. The media server was originally connected to the router using TP-Link Powerline adapters (and the TV using WiFi) but I've completely removed those from the setup to eliminate them as a possible cause. The issue still remained.
    - I disabled WiFi on my ISP's router, then hooked up the new one (an Asus RT-AC88U) and set up the WiFi on the AC88U. I then tried streaming but got the same results.
    - I disabled uPnP on the new router (now that I've got the option), and still get the same results.
    - I checked the SSDP Advertisement Interval in Mezzmo and it's already 86400 but as the disconnections can occur within 5 minutes then this doesn't seem like it would be the issue.

    I have provided a log file with 3 disconnections.

    https://drive.google.com/open?id=118...m7Is3qdEYtfmlJ

    I hope you can help, let me know if there's any more information I can provide.

    Thank you.
    Thanks,
    Frantic.

  7. #7

    Default

    There's some additional information that may help to trace my issue. After posting the above, I left a different TV in another room playing a video. It too disconnected after a time, but was then unable to see the DLNA server at all in order to continue playback. This sometimes happens with the other TV but I haven't had logging enabled when it happens. I don't know if it's another symptom of the same issue, or if it's a different issue altogether but it might be a piece of the puzzle that helps.

    I've included a link to this log file below.

    https://drive.google.com/open?id=1df...jJO956e7ZhBej7
    Thanks,
    Frantic.

  8. #8
    Join Date
    Sep 2009
    Posts
    2,260

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    The logs indicate the file is streaming fine until an M-Search message is received from 192.168.1.250 looking for an InternetGatewayDevice then the TV does a browse request on the server and disconnects. The device at 192.168.1.250 is the PC running Mezzmo so there must be some other software on the PC that is sending out the M-Search message looking for an InternetGatewayDevice and this is interrupting the stream.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

  9. #9

    Default

    Interesting, thanks Peter. That is indeed the IP address of the Mezzmo server, I assigned a fixed IP address to it for remote access purposes.

    After doing some digging, M-Search seems to be related to uPnP so in additional to disabling it on the router, I'm going to attempt stopping the uPnP windows service on the Mezzmo server, as well as the SSDP service. Then I'll attempt my test again and see what happens.

    I've also added the powerline adapter back in to provide a wired link for hooking up the Mezzmo server to the router as running it off a WiFi adapter seemed to stop a couple of the TVs from seeing the DLNA broadcasts.

    Out of interest, so that I can investigate my own logs somewhat - what text are you searching for to indicate where the disconnection happens in the log files?
    Thanks,
    Frantic.

  10. #10

    Default

    A quick question for you Peter - are you familiar with Wireshark? If so and I'm able to capture a full network traffic log in Wireshark for a few minutes leading up to a disconnection, would that help you at all?
    Thanks,
    Frantic.

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