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?

Same problem here. Windows 10 1909, using a proxy through the local school district. Getting all of the latest Windows updates/upgrades seems to have helped the issue occur less often, but it still happens. I hope MS can put this issue on a higher priority and get it fixed before the school year starts (next week!) and thousands of teachers and students are impacted.

@mondeca - Is she using a USB-C or Thunderbolt 3-based dock with her work-issued Win 10 laptop?

My wife is having the same problem with her work-issued Windows 10 laptop. She doesn't have this problem with her Apple laptop using the Teams app or with our home-built Windows 10 desktop PC. The desktop PC doesn't have a webcam, so I can't fully replicate the problem there. I can, however, replicate the problem on the work laptop reliably by starting (or answering) a Teams call. The connection will drop within a few minutes every time. The connection is completely reliable except when Teams is running on the work laptop. I've seen lots of people reporting this problem with different brands of routers, so I don't think that the problem is with the router. Just to be safe, I updated the router's firmware, and it did not resolve the problem. It's disappointing to see that this problem has gone on for so long without a resolution. We're about to report this issue to my wife's IT department, but if the problem is with Teams itself, there's not much that they are going to be able to do. We need a solution from Microsoft.

Yes the only full proof work around currently is to use an external USB-C Ethernet adapter.

Great suggestion to use a USB to Ethernet adapter on the dock! I'll try it. Please update the thread here if/when you hear back from Lenovo!

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.

0 comments

133 answers

Anonymous

2020-09-03T15:22:56+00:00

Same problem here. Windows 10 1909, using a proxy through the local school district. Getting all of the latest Windows updates/upgrades seems to have helped the issue occur less often, but it still happens. I hope MS can put this issue on a higher priority and get it fixed before the school year starts (next week!) and thousands of teachers and students are impacted.
Was this answer helpful?

0 comments No comments
Anonymous

2020-09-01T16:48:03+00:00

@mondeca - Is she using a USB-C or Thunderbolt 3-based dock with her work-issued Win 10 laptop?
Was this answer helpful?

0 comments No comments
Anonymous

2020-09-01T15:30:49+00:00

My wife is having the same problem with her work-issued Windows 10 laptop. She doesn't have this problem with her Apple laptop using the Teams app or with our home-built Windows 10 desktop PC. The desktop PC doesn't have a webcam, so I can't fully replicate the problem there. I can, however, replicate the problem on the work laptop reliably by starting (or answering) a Teams call. The connection will drop within a few minutes every time. The connection is completely reliable except when Teams is running on the work laptop.

I've seen lots of people reporting this problem with different brands of routers, so I don't think that the problem is with the router. Just to be safe, I updated the router's firmware, and it did not resolve the problem.

It's disappointing to see that this problem has gone on for so long without a resolution. We're about to report this issue to my wife's IT department, but if the problem is with Teams itself, there's not much that they are going to be able to do. We need a solution from Microsoft.
Was this answer helpful?

0 comments No comments
Anonymous

2020-08-11T16:29:48+00:00

Yes the only full proof work around currently is to use an external USB-C Ethernet adapter.
Was this answer helpful?

0 comments No comments
Anonymous

2020-08-07T00:42:44+00:00

Great suggestion to use a USB to Ethernet adapter on the dock! I'll try it. Please update the thread here if/when you hear back from Lenovo!
Was this answer helpful?

0 comments No comments