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?

@mhull .. nope. Newer driver version didn't work for me. I had a call just yesterday and everything dropped again. Moved the 'cable back to the built-in Ethernet port and all is well again.

@mhull Ah ha.. now there's a difference.. I'm currently on v10.38.20.117, from January of this year, as well. I'll update the driver, give it another try, and report back. Now I'm wondering if it's the driver, the firmware, or both that might be the fix, especially since the new driver version was released 2 days before the dock firmware update was released. Current version:

Oh no! Bummer.... Going on 3 days now without a drop. I guess mine will be coming then... Can you check in system information and see what version of the Realtek Ethernet driver you have installed? This was one thing that I have been updating every time there is a new version as well. Looking at the Realtek site, there appears to be a new version (10.39.20) of that driver as well. I wanted to try the dock firmware first before trying that new driver. I will wait until I experience the issue again before updating....

@mhull .. well, unfortunately during a call today, the connection dropped, wouldn't come back up, etc.. same behavior as before. So, I went 2 days w/o a drop; this firmware may have improved something, but it hasn't fixed the issue. Time to reset the counter.. "0 days since last drop".

@mhull . Same here; I've been through a few meetings myself with no disconnects, and I'm all but certain it would've disconnected on the old firmware by now, but, we'll see.. If it goes the week, then I'll consider it fixed for me at least.. Really hoping other manufacturers which use the same underlying tech post firmware updates for their docks, too.

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

2020-07-24T17:23:38+00:00

@mhull .. nope. Newer driver version didn't work for me. I had a call just yesterday and everything dropped again. Moved the 'cable back to the built-in Ethernet port and all is well again.
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Anonymous

2020-07-22T21:48:00+00:00

@mhull

Ah ha.. now there's a difference.. I'm currently on v10.38.20.117, from January of this year, as well. I'll update the driver, give it another try, and report back. Now I'm wondering if it's the driver, the firmware, or both that might be the fix, especially since the new driver version was released 2 days before the dock firmware update was released.

Current version:
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Anonymous

2020-07-22T21:33:15+00:00

Oh no! Bummer.... Going on 3 days now without a drop. I guess mine will be coming then... Can you check in system information and see what version of the Realtek Ethernet driver you have installed? This was one thing that I have been updating every time there is a new version as well. Looking at the Realtek site, there appears to be a new version (10.39.20) of that driver as well. I wanted to try the dock firmware first before trying that new driver. I will wait until I experience the issue again before updating....
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Anonymous

2020-07-22T20:16:26+00:00

@mhull .. well, unfortunately during a call today, the connection dropped, wouldn't come back up, etc.. same behavior as before. So, I went 2 days w/o a drop; this firmware may have improved something, but it hasn't fixed the issue. Time to reset the counter.. "0 days since last drop".
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Anonymous

2020-07-21T17:39:40+00:00

@mhull . Same here; I've been through a few meetings myself with no disconnects, and I'm all but certain it would've disconnected on the old firmware by now, but, we'll see.. If it goes the week, then I'll consider it fixed for me at least.. Really hoping other manufacturers which use the same underlying tech post firmware updates for their docks, too.
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