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.

0 comments No comments

133 answers

Sort by: Newest
  1. Anonymous
    2020-06-05T21:07:27+00:00

    ScottMetzel,

    My USB-C Dock also uses that driver

    Was this answer helpful?

    0 comments No comments
  2. 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"

    Was this answer helpful?

    0 comments No comments
  3. 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.

    Was this answer helpful?

    0 comments No comments
  4. Anonymous
    2020-06-05T19:52:21+00:00

    Having the same exact issue as others have stated. Within 3-7 minutes of a Team meeting, others in the meeting will see that I have "frozen" and then about 40 seconds later my Ethernet connection will drop out completely. To regain connectivity and re-join the meeting, I simply unplug the network cable and plug it back in. After the initial loss of connectivity, it doesn't happen again a second time after re-connecting to the meeting. I am using a Lenovo Yoga C740-15IML i7 Windows 10 Enterprise.  The dock is a Lenovo Thinkpad Thunderbolt 3 Gen 2 Dock Model DK1841. I have an open ticket with Team's support but they have not been able to figure it out it. It appears to be an issue with the specific driver/hardware used in certain models of docks. The DK1841 uses a Realtek chipset and I suspect there is some sort of incompatibility with the current driver or configuration in the Teams Desktop app.

    As a workaround, I have found this issue does not happen in the following situations:

    1. Using a USB-C to Ethernet Adapter connected directly to laptop
    2. Connecting via Wi-Fi
    3. Using the Teams web / browser version

    Hopefully this can be sorted out soon...

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments
  5. Anonymous
    2020-06-03T16:35:34+00:00

    Piling on... same issue.  Lenovo T480s, ethernet connection which will drop 10-15 minutes into a call.  I've noticed that it happens more when I'm presenting, usually not when I'm in the audience.   It's puzzling why that would be the case but it's a clear pattern for me.

    The laptop switches to WiFi but I can't reconnect on WiFi at that point, I need a reboot.  For next time I'll try starting the call on WiFi from the get-go to see if that allows me to get through my full presentation without issues.

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments