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.

I'm having a similar issue when VPN loses connection only when a Teams call is going on. My ISP basically checked everything, also my workplace IT department. I believe there is something between Teams and my network setup (might be the SSID configuration although it is set to default settings).

Just in case it helps anyone else- I was having this issue with Teams killing other network activity, which then escalated to Teams killing my internet connection entirely and requiring a modem reboot. In my case, the issue ended up being a damaged (buried) coax cable from my ISP's service box to my house. It wasn't broken, but damaged enough to cause intermittent and random problems like this.

Just in case it helps anyone else- I was having this issue with Teams killing other network activity, which then escalated to Teams killing my internet connection entirely and requiring a modem reboot. In my case, the issue ended up being a damaged (buried) coax cable from my ISP's service box to my house. It wasn't broken, but damaged enough to cause intermittent and random problems like this. This sounds unrelated i have to admit.. how will just one application be affected by damaged equipment? I use other forms of heavy trafficing like gaming and i never witnessed any issue. I dont see anyone being able to actually pin point the issue to a cable replacement..

I agree with you that it's a strange cause, doesn't make a ton of sense to me, and probably isn't affecting very many others, but I wanted to post it just in case. I always appreciate when people post the "solution" to their problem, even if it's an esoteric one. I was *occasionally* having internet issues outside of Teams calls, though it was primarily Teams that instigated my problems.

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

2021-08-29T17:52:43+00:00

I'm having a similar issue when VPN loses connection only when a Teams call is going on.

My ISP basically checked everything, also my workplace IT department.

I believe there is something between Teams and my network setup (might be the SSID configuration although it is set to default settings).
Was this answer helpful?

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Anonymous

2021-08-30T12:30:27+00:00

Just in case it helps anyone else- I was having this issue with Teams killing other network activity, which then escalated to Teams killing my internet connection entirely and requiring a modem reboot. In my case, the issue ended up being a damaged (buried) coax cable from my ISP's service box to my house. It wasn't broken, but damaged enough to cause intermittent and random problems like this.
Was this answer helpful?

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Anonymous

2021-08-30T12:48:34+00:00

Just in case it helps anyone else- I was having this issue with Teams killing other network activity, which then escalated to Teams killing my internet connection entirely and requiring a modem reboot. In my case, the issue ended up being a damaged (buried) coax cable from my ISP's service box to my house. It wasn't broken, but damaged enough to cause intermittent and random problems like this.

This sounds unrelated i have to admit.. how will just one application be affected by damaged equipment?

I use other forms of heavy trafficing like gaming and i never witnessed any issue.

I dont see anyone being able to actually pin point the issue to a cable replacement..
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Anonymous

2021-08-30T12:57:14+00:00

I agree with you that it's a strange cause, doesn't make a ton of sense to me, and probably isn't affecting very many others, but I wanted to post it just in case. I always appreciate when people post the "solution" to their problem, even if it's an esoteric one.

I was *occasionally* having internet issues outside of Teams calls, though it was primarily Teams that instigated my problems.
Was this answer helpful?

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