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?

Yes, now two out of the 5 users with same hardware are having the same issues, but only when they are in multiple video meetings a day, and they are normally hosting/presenting. I use the same equipment and I have uploaded large files, remotely assist users sharing a screen in TeamViewer all without any issues, so this confirms that the problem is between Teams and the realtek adapter on the dock. I connected USB to Ethernet adapters to their docks for the meantime (which has worked all day yesterday and today) until something gets resolved with this. I have not heard back from our Lenovo rep yet.

Patrick, do you see a pattern where the user who gets disconnected tends to present more, while the ones that don't, spend the majority of the time listening/watching? I know that for me personally, the crashing happens only when I'm the presenter, i.e. generating a lot of upstream traffic (talking, sharing my screen, etc.) If I'm mostly watching and listening (downstream traffic) my connection remains stable.

I have the same exact issue on a T490 using the same ThinkPad USB-C Dock Gen2. Only one user out of 4 with the same exact hardware is having the issue. It only drops during video calls/meetings. I have followed everything everyone above has said about installing the drivers and updating the firmware. I just don't understand how one user is having the issue but the other 3 are not (and I'm one of the 3). He may be doing more video calls/meetings but I have done several without ever having the issue. I'm also reaching out to our Lenovo rep to see if they have any solutions and will post back if I find anything there.

So much for that idea... I have somehow made it the whole week without a drop.

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

2020-08-06T23:16:05+00:00

Yes, now two out of the 5 users with same hardware are having the same issues, but only when they are in multiple video meetings a day, and they are normally hosting/presenting. I use the same equipment and I have uploaded large files, remotely assist users sharing a screen in TeamViewer all without any issues, so this confirms that the problem is between Teams and the realtek adapter on the dock.

I connected USB to Ethernet adapters to their docks for the meantime (which has worked all day yesterday and today) until something gets resolved with this. I have not heard back from our Lenovo rep yet.
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Anonymous

2020-08-06T00:32:31+00:00

Patrick, do you see a pattern where the user who gets disconnected tends to present more, while the ones that don't, spend the majority of the time listening/watching?

I know that for me personally, the crashing happens only when I'm the presenter, i.e. generating a lot of upstream traffic (talking, sharing my screen, etc.) If I'm mostly watching and listening (downstream traffic) my connection remains stable.
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Anonymous

2020-08-05T23:32:57+00:00

I have the same exact issue on a T490 using the same ThinkPad USB-C Dock Gen2.

Only one user out of 4 with the same exact hardware is having the issue. It only drops during video calls/meetings. I have followed everything everyone above has said about installing the drivers and updating the firmware. I just don't understand how one user is having the issue but the other 3 are not (and I'm one of the 3). He may be doing more video calls/meetings but I have done several without ever having the issue. I'm also reaching out to our Lenovo rep to see if they have any solutions and will post back if I find anything there.
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Anonymous

2020-07-25T01:21:13+00:00

So much for that idea... I have somehow made it the whole week without a drop.
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