PULSE FLEX 2I Stereo Pair out of sync

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Anders

• October 28, 2021 09:10

I have two PULSE FLEX 2I which are setup in a Stereo Pair.

What I experienced is that they get out of "controlling" sync where you can pause playback on one but it then takes several minutes before the other speakers pauses the playback. Other times the device does not respond at all. Note that this test is performed by pressing the buttons on the devices.

When both speakers are playing there is no audio sync issues.

I also experienced that the stereo pair will drop completely sometimes and stop showing in the app. A recreating of the pair sometimes work. Other times it can't be completed right away.

At first I thought the problems occured because one speaker was on wifi (unify) and one on ethernet. Even though both is on wifi the problems occurs. Generally speaking I have a very stable internet connection (1Gb/s fiber).

Any ideas ?

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• Official comment

  

  Bjørn Ulvik

  • October 28, 2021 10:58

  ......Generally speaking I have a very stable internet connection
  
  Your internet connection is probaly not the issue, but most likely your "internal" network.

  
  Have a look in your UniFi Network Application and see if Multicast Enhancement is on.

  

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  Anders

  • October 28, 2021 11:01

  That was turned off. I have now turned it on and I will see how it goes the next weeks.

  Any other ideas?

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  Bjørn Ulvik

  • October 28, 2021 11:16
  • Edited

  I have many ideas, but turning Multicast Enhancement "on" will most likely solve your issue.
  On your access point(s) make sure "Enable minimum RSSI" and "Airtime Fairness" is off.
  "Wi-Fi AI" is also a well known "problem child" that will block multicast and broadcast traffic.
  
  

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  Anders

  • October 28, 2021 11:35

  All access points had Airtime Fairness turned on and some had Enable minimum RSSI on as well. Both are now off for all devices 

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  Anders

  • November 01, 2021 06:33

  So far it is seems to have improved my situation. I will return when I have been able to do some more testing.

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  Anders

  • November 07, 2021 11:13

  I have been tested for some days now and it seems the problem is still there.

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  Tony W. - Product Support Manager

  • November 08, 2021 14:11

  Help, Send Support Request in the App so we may take a closer look and find out what is causing delays in your home network environment after reviewing the event log of the Players.

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  Anders

  • November 08, 2021 18:31

  Thank you - I have done this now

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