Microsoft Teams Kills all Network Connectivity During Calls

Anonymous
2019-10-28T14:37:04+00:00

Despite having a good WiFi or Ethernet connection, regardless of which network I'm on, if I join a Microsoft Teams call, all network connectivity stops working and teams simultaneously reports poor call quality and no network connectivity. All this while on an active call which I can see and hear. Here's a full description of symptoms.

Every time I connect to a Teams call:

  • Incoming call quality is ok. I can hear and see others.
  • Outgoing call quality is very poor. Others say my voice is breaking up.
  • If I unmute and speak for more than a few seconds, I am booted from the call.
  • If I stay muted I can stay on the call indefinitely.
  • I can share my screen just fine, I don't get kicked from the call.
  • Teams periodically puts up a warning symbol in the call controls reporting poor connectivity.
  • Teams puts up a blue banner stating that I have been disconnected from the internet.
  • (Intermittent) Teams puts up a big overlay on top of the whole app saying I have been disconnected
  • The call continues though all of this, including voice and video.
  • All other network connectivity is broken (e.g.: Browsers cannot load pages, network drives stop working)
  • Text chat features work fine (but not during calls, where they fail to work like all other network activity)

The instant the call ends, all the symptoms stop. I can access network resources again. My wifi connection is fine. I've tested using wired networking and encounter the exact same issue. I've also tried various audio devices and disconnecting all peripherals as longshot solutions. No dice. I don't have anything weird on my system as far as I am aware. Teams works fine on other machines but not on my primary laptop. 

This issue not only makes Microsoft Teams itself nearly unusable, it knocks my whole system offline for the duration of the call, which is incredibly frustrating.

I'm booting into Windows 10 on a 2015 MacBook Pro 13". I have all the latest patches for everything. I've seen two other people here who have what I think is the same issue as mine, but their question threads didn't have any solutions either, and now they're locked.

https://answers.microsoft.com/en-us/msoffice/forum/all/microsoft-teams-always-appears-poor-network/1a9ef89c-e495-4e2c-b108-d5b8702a54a8

https://answers.microsoft.com/en-us/msoffice/forum/all/teams-kills-all-connections/6b9dd383-df31-4bec-957a-41ee478eab3e

Does anyone have any idea what could be going wrong? Any solutions? Any more info needed from me about my setup?

Microsoft 365 and Office | Subscription, account, billing | For home | Windows

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2021-02-04T08:46:28+00:00

    Through the driver udpate, it's getting even worse in our network. 

    Now the computers with the applied patch experience BSOD several times a day.

    We experience this, with different lenovo thinkpad models.

    Details could be found in lenovo forum: 

    Re:rtump64x64.sys bluescreen on X1 Yoga Gen 4 attached to ThinkPad Thunderbolt 3 Dock - Type 40AC

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  2. Anonymous
    2021-02-04T01:25:27+00:00

    this update did not fix the issue we updated lenovo dock and still have the issues.

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  3. Anonymous
    2021-01-29T20:43:17+00:00

    I experienced same problem now. My network is okay and fixed, but every time I try to open MS team it will crashed my internet connect and it will take a minute to return the connection and need also to close also the teams apps on my desktop. Any solution about this?

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  4. Anonymous
    2021-01-29T17:47:54+00:00

    Just an FYI, the new Realtek USB Ethernet driver version 10.44.1214.2020 is appearing in Windows Update (in Windows 10 20H2 under the optional "driver updates" section).

    I have now deployed it to about 20 users with most users having no complaints and others saying that it is better but they still experience crashes randomly during video calls on both Zoom and Teams.

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  5. Anonymous
    2021-01-29T01:45:52+00:00

    After months of not experiencing problems, today Teams dropped the call again and killed my Ethernet connection - just like the old times :)   

    I just installed this new driver package (V1.0.0.23).  - The Realtek USB ethernet driver got upgraded to 10.44.1214.2020 (from 10.43.1029.2020). 

    We'll see what happens.  In my case, I think calls had been fine all this time because I don't usually present and my camera is off - so mostly downstream traffic.   Today I was presenting and on camera the whole time, and sure enough about 20-25 minutes into the call the issue occurred.   This is the same situation I used to experience regularly months ago when I came to this thread to report it - I was on a project then that required me to present/share screen often, so a lot of upstream traffic.

    Fingers crossed - I'll report any findings.

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