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

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  1. Anonymous
    2020-06-08T13:30:27+00:00

    A clean install for me worked to resolve this issue.  MacOS 10.15.5

    Cheers, David Brodosi

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  2. Anonymous
    2020-06-08T10:42:11+00:00

    Hi,

    I could solve the problem somewhat after talking to some MSFT support employee. 

    We added another user under SETTINGS - ACCOUNTS - FAMILY & OTHER USER - OTHER USERS. This user can be one with a gmail or another account.

    After rebooting the system, at least TEAMS did not kill my network connection anymore in web sessions and the performance seems to be much better, too. Not perfect, but now I can work with it at least.

    Not sure, if the new user did the trick or any WIN update in the background. But hey :-)

    br Oliver

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  3. Anonymous
    2020-06-05T21:07:27+00:00

    ScottMetzel,

    My USB-C Dock also uses that driver

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  4. Anonymous
    2020-06-05T21:00:42+00:00

    @mhull, @MiguelRodé - So that USB-C with USB-A dock you mentioned (@MiguelRodé) uses the same RealTek driver that the Lenovo Thunderbolt 3 Workstation Dock Gen 2 uses. I downloaded the drivers for the USB-C with USB-A dock, popped open the INF file for the driver, and all the devices listed below use the same driver. I think if it's the device, that anyone using this device and driver with Teams could have the same experience we're having. If the experience is different, then perhaps it's not the device / driver, but something else in common (i.e. Teams) .. really not sure... List:

    • DISKNAME                       = "Realtek USB FE/1GbE/2.5GbE NIC Family all in one NDIS Driver"
    • Rtunicx86w10.Service.DispName  = "Realtek USB FE/1GbE/2.5GbE NIC Family Windows 10 32-bit Driver"
    • Rtunicx64w10.Service.DispName  = "Realtek USB FE/1GbE/2.5GbE NIC Family Windows 10 64-bit Driver"
    • Rtunicarm32w10.Service.DispName= "Realtek USB FE/1GbE/2.5GbE NIC Family Windows 10 ARM 32-bit Driver"
    • Rtunicarm64w10.Service.DispName= "Realtek USB FE/1GbE/2.5GbE NIC Family Windows 10 ARM 64-bit Driver"
    • RTL8152BX.DeviceDesc           = "Realtek(R) USB FE Family Controller"
    • RTL8153X.DeviceDesc            = "Realtek(R) USB GbE Family Controller"
    • RTL8156X.DeviceDesc            = "Realtek(R) USB 2.5GbE Family Controller"
    • RTL8152B.DeviceDesc            = "Realtek USB FE Family Controller"
    • RTL8152B-Gaming.DeviceDesc     = "Realtek Gaming USB FE Family Controller"
    • RTL8153.DeviceDesc             = "Realtek USB GbE Family Controller"
    • RTL8153-Gaming.DeviceDesc      = "Realtek Gaming USB GbE Family Controller"
    • RTL8156.DeviceDesc             = "Realtek USB 2.5GbE Family Controller"
    • RTL8156-Gaming.DeviceDesc      = "Realtek Gaming USB 2.5GbE Family Controller"
    • Elecom-001.DeviceDesc          = "ELECOM EDC-G01 1GbE Ethernet Adapter"
    • Elecom-002.DeviceDesc          = "ELECOM EDC-QUA3 Wired LAN Adapter"
    • Xiaomi-001.DeviceDesc          = "Xiaomi Accessory"
    • PioneerDJ-001.DeviceDesc       = "Pioneer DJ Network Adapter"
    • Belkin-001.DeviceDesc          = "USB 2.0 Ethernet Adapter 10/100Mbps"
    • Belkin-002.DeviceDesc          = "USB 3.0 to Gigabit Adapter"
    • LG-001.DeviceDesc              = "LG USB 10/100 Ethernet Adapter"
    • LG-002.DeviceDesc              = "LG USB GbE Ethernet Adapter"
    • TP-LINK-001.DeviceDesc         = "TP-LINK Gigabit Ethernet USB Adapter"
    • TP-LINK-002.DeviceDesc         = "TP-LINK 100Mbps Ethernet USB Adapter"
    • TP-LINK-003.DeviceDesc         = "TP-LINK Fast Ethernet USB Adapter"
    • D-LINK-001.DeviceDesc          = "Remote NDIS based Internet Sharing Device"
    • Lenovo-001.DeviceDesc          = "ThinkPad OneLink Pro Dock Giga Ethernet"
    • Lenovo-003.DeviceDesc          = "ThinkPad Tablet Dock Giga Ethernet"
    • Lenovo-004.DeviceDesc          = "ThinkPad OneLink Adapter"
    • Lenovo-007.DeviceDesc          = "ThinkPad OneLink Plus Dock Ethernet"
    • Lenovo-008.DeviceDesc          = "Tablet Dock Giga Ethernet"
    • Lenovo-009.DeviceDesc          = "ThinkPad WiGig dock for USB Ethernet"
    • Lenovo-00E.DeviceDesc          = "Lenovo Thunderbolt 3 Graphics Dock Ethernet"
    • Lenovo-011.DeviceDesc          = "ThinkPad Thunderbolt 3 Dock USB Ethernet"
    • Lenovo-014.DeviceDesc          = "USB-C Dock USB Ethernet"
    • Lenovo-016.DeviceDesc          = "Lenovo Thunderbolt 3 Mainstream Dock USB Ethernet"
    • Lenovo-017.DeviceDesc          = "USB-C Dock Gen2 Ethernet"
    • Lenovo-018.DeviceDesc          = "Realtek USB GbE Family Controller"
    • Lenovo-FFF.DeviceDesc          = "Lenovo USB Ethernet"
    • Linksys-001.DeviceDesc         = "Linksys USB3GIGV1"
    • Samsung-001.DeviceDesc         = "Samsung USB Ethernet Adapter"
    • Acer-001.DeviceDesc            = "Chicago173"
    • IOI-001.DeviceDesc             = "IOI USB 3.0 Gigabit Ethernet Controller"
    • Club3D-001.DeviceDesc          = "USB C TO RJ45 DONGLE"
    • Luxshare-001.DeviceDesc        = "Luxshare USB-C to Ethernet Adapter"
    • Toshiba-001.DeviceDesc         = "TOSHIBA KB Dock USB Ethernet"
    • dynabook-001.DeviceDesc        = "dynabook USB-C Dock Ethernet"
    • dynabook-002.DeviceDesc        = "dynabook Travel Adapter Ethernet"
    • Clevo-001.DeviceDesc           = "USB LAN Controller"
    • ASUS-001.DeviceDesc            = "ASUS 2.5G Ethernet USB Adapter"
    • Twinhead-001.DeviceDesc        = "USB GIGABIT LAN"
    • TRENDnet-001.DeviceDesc        = "TRENDnet USB 2.5G Adapter"

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  5. Anonymous
    2020-06-05T20:24:22+00:00

    Matt, thanks for those workarounds!   I'll give them a try.  I have been using WiFi with no issues so definitely agree with your #2.   I'll have to try unplugging and re-plugging the network cable, a whole lot better that a full reboot, haha.

    In case it helps, my dock is a Lenovo "ThinkPad Hybrid USB-C with USB-A Dock" model number DUD9011D1 - this guy.

    Please keep this thread active if you hear back from support!

    Best,

    M.

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