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?

On the Lenovo Driver Support Site a new driver version for Thinkpad Hybrid USB-C with USB-A Dock was published on 20.01.2021: Driver for ThinkPad Hybrid USB-C with USB-A Dock - Lenovo Support DE

I am seeing to have the same issue. Windows 10 Pro. Teams hangs in the middle of a video call. The laptop which is hardwired in from the Cable modem loses internet connectivity spontaneously. None of the 30 odd devices which are connected to the router loses internet connectivity. Luckily the Teams in my Pixel phone seems to have no issues and I am able to continue the meeting by switching over to the phone. Smells like a Teams desktop client issue to me. Teams Desktop Client -> Windows 10 Pro -> Lenovo T490s - 16GB RAM

Unfortunately I have no good news. The issue continues to this day and I remain very frustrated. I've gotten no response from Microsoft in any of the ways I've tried to contact them. The issue occurs when I work remotely AND in the office. I'm on the verge of trying a clean Windows 10 install to see if that fixes it. Or I could uninstall and reinstall teams? Poke around the registry? I don't know, at this point I'm ready to start trying random shots in the dark.

The Teams app works fine on other machines on the same network. It only fails in this way on my primary work machine (i.e.: the machine where I really need to use it). There is no obvious problem with that machine either, until I try to use Teams.

Hi Test, Please post any resolution you get back here please. I suspect there are many of us with this issue but are just dealing with it. It seems I was not always having this issue and it started in early November (possibly at the end of October)

Microsoft Teams Kills all Network Connectivity During Calls

Anonymous

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?

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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133 answers

Anonymous

2021-01-21T08:42:35+00:00

On the Lenovo Driver Support Site a new driver version for Thinkpad Hybrid USB-C with USB-A Dock was published on 20.01.2021:

Driver for ThinkPad Hybrid USB-C with USB-A Dock - Lenovo Support DE
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Anonymous

2020-05-14T18:11:34+00:00

I am seeing to have the same issue. Windows 10 Pro. Teams hangs in the middle of a video call. The laptop which is hardwired in from the Cable modem loses internet connectivity spontaneously. None of the 30 odd devices which are connected to the router loses internet connectivity.

Luckily the Teams in my Pixel phone seems to have no issues and I am able to continue the meeting by switching over to the phone.

Smells like a Teams desktop client issue to me.

Teams Desktop Client -> Windows 10 Pro -> Lenovo T490s - 16GB RAM
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Anonymous

2019-12-09T19:48:41+00:00

Unfortunately I have no good news. The issue continues to this day and I remain very frustrated. I've gotten no response from Microsoft in any of the ways I've tried to contact them. The issue occurs when I work remotely AND in the office.

I'm on the verge of trying a clean Windows 10 install to see if that fixes it. Or I could uninstall and reinstall teams? Poke around the registry? I don't know, at this point I'm ready to start trying random shots in the dark.
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Anonymous

2019-10-29T15:36:51+00:00

The Teams app works fine on other machines on the same network. It only fails in this way on my primary work machine (i.e.: the machine where I really need to use it). There is no obvious problem with that machine either, until I try to use Teams.
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Anonymous

2019-12-09T17:09:15+00:00

Hi Test,

Please post any resolution you get back here please.

I suspect there are many of us with this issue but are just dealing with it.

It seems I was not always having this issue and it started in early November (possibly at the end of October)
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