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?

Thank you for the post. I having the same issue since past few days with both teams in browser and with teams app on windows 10. I have everything updated. The connectivity disconnects in few minutes after I start the call on teams or join any meeting. Thia is really frustrating.

TEMPORY WORKARROUND!!Install WINpCAP or wireshark and your issue will be solved. It makes your NIC to accept all data... give me a thumb up if this worked for you Same problem here. T590 with 40AF doggystation. All up to date. Kills LAN with RTL chipset randomly & most of the time within 5 minutes. tried to upgrade directly from Realtek website Works on internal NIC and Wifi. seems something with the 8153b chipset by realtek This is interesting. Many months ago when I was working with Microsoft support on this issue, they had me run Wireshark to collect packets. I could never reproduce the issue for them when running Wireshark. I had a feeling that running the packet capture somehow was preventing the issue from happening. Now I know and can confirm this workaround does work. Do you have to be continuously capturing packets, once, or did you have to do something else to solve the problem? Yes I was capturing during the Teams meetings and didn't have any Ethernet drops. It was only when I was not capturing that I would experience the drops about 50% of the time.

Original reporter here. My 2015 Macbook Pro 13" has gone to laptop heaven. It had this issue until it broke, about a month ago. That means that should this issue eventually be fixed, or if it's fixed already, I will have no way of knowing or verifying. Just an FYI. Hopefully someone else with the same list of symptoms can verify when this is fixed.

Unfortunately you are using Teams on windows10 running on a Macbook Pro. This probably adds a layer of complexity to the problem you are facing and may limit full compatibility? I am also not sure this might be a supported configuration by Microsoft as well ? If you have found others who face the problem perhaps you can report it to Teams uservoice? https://microsoftteams.uservoice.com

Another test is to see if Teams App on another machine on the same network has the same problem, or is it only teams app installed on your machine.

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

2021-06-21T09:49:40+00:00

Thank you for the post. I having the same issue since past few days with both teams in browser and with teams app on windows 10. I have everything updated.

The connectivity disconnects in few minutes after I start the call on teams or join any meeting.

Thia is really frustrating.
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Anonymous

2020-12-01T22:59:30+00:00

TEMPORY WORKARROUND!!Install WINpCAP or wireshark and your issue will be solved. It makes your NIC to accept all data... give me a thumb up if this worked for you

Same problem here.

T590 with 40AF doggystation. All up to date. Kills LAN with RTL chipset randomly & most of the time within 5 minutes.

tried to upgrade directly from Realtek website

Works on internal NIC and Wifi. seems something with the 8153b chipset by realtek

This is interesting. Many months ago when I was working with Microsoft support on this issue, they had me run Wireshark to collect packets. I could never reproduce the issue for them when running Wireshark. I had a feeling that running the packet capture somehow was preventing the issue from happening. Now I know and can confirm this workaround does work.

Do you have to be continuously capturing packets, once, or did you have to do something else to solve the problem?

Yes I was capturing during the Teams meetings and didn't have any Ethernet drops. It was only when I was not capturing that I would experience the drops about 50% of the time.
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Anonymous

2020-05-27T00:37:58+00:00

Original reporter here. My 2015 Macbook Pro 13" has gone to laptop heaven. It had this issue until it broke, about a month ago. That means that should this issue eventually be fixed, or if it's fixed already, I will have no way of knowing or verifying. Just an FYI. Hopefully someone else with the same list of symptoms can verify when this is fixed.
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Vincent Choy 11,260 Reputation points Volunteer Moderator

2019-10-30T02:13:22+00:00

Unfortunately you are using Teams on windows10 running on a Macbook Pro. This probably adds a layer of complexity to the problem you are facing and may limit full compatibility? I am also not sure this might be a supported configuration by Microsoft as well ? If you have found others who face the problem perhaps you can report it to Teams uservoice?

https://microsoftteams.uservoice.com
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Vincent Choy 11,260 Reputation points Volunteer Moderator

2019-10-29T04:42:09+00:00

Another test is to see if Teams App on another machine on the same network has the same problem, or is it only teams app installed on your machine.
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