Forum Discussion
garygraeff
Nov 10, 2022Copper Contributor
Teams client kills network performance
Hello. I have two Microsoft Surface devices, one SB2 and one Surface Laptop 2, both on Windows 10. Both of them, over the last few months, have experienced significant wifi and wired network slowdo...
- Dec 02, 2022Teams alone shouldn't be causing this type of substantial network drop for you, so this is definitely concerning. Do you have a ticket open with Support on this yet by chance? We might need to dive deeper into a netcap to understand what's really going on via the network and see what's taking away the chunk of your network here (Teams or other) in this case.
garygraeff
Nov 10, 2022Copper Contributor
This is the other post I mentioned:
https://answers.microsoft.com/en-us/msteams/forum/all/startingstopping-teams-throttles-network-speed/b474dfdd-09e6-41d5-8fbe-7843b39a82a9
https://answers.microsoft.com/en-us/msteams/forum/all/startingstopping-teams-throttles-network-speed/b474dfdd-09e6-41d5-8fbe-7843b39a82a9
garygraeff
Dec 01, 2022Copper Contributor
StaceeFrane, please note that the reason I posted this reply, referencing this additional post, is that it is an example of another person having the same problems that I have seen. However, there are no useful answers in that post and this problem still remains. Clearing the cache is only a temporary fix, and it doesn't take long for the problem to return. Also note that after continued use of the Teams Web client over the past 2.5 weeks (I have abandoned the Windows client), performance degrades as well. As suggested by the OP in the other thread, perhaps this is a problem with Windows since other video conferencing platforms seem to have similar issues ,but since Windows and Teams are both MS products, it would be great to get this fixed.
- Sam CosbyDec 02, 2022
Microsoft
garygraeff Sorry to hear you're having this problem. Let's dig into this a bit further.. I read the previous post as well and it looks like this seems to be happening after the initial login process.. Can you provide detailed steps that you can help pinpoint about the specific timeframe for when you see this? An example would look like;
- At 4:42:00, I launched SpeedTest, showing X upload/download speeds, then launched Teams.- At 4:42:10, Teams fully launched, still showing X upload/download speeds.
- At 4:43:05, SpeedTest is now showing Y upload/download speeds.
- At 4:45:06, SpeedTest is still showing Y upload/download speeds.
- At 4:45:00, I killed the Teams.exe Process, and SpeedTest went back to showing X upload/download speeds.
When clearing cache (Sign-out also clears cache), there's a rebuilding process that takes place for the app to try and rebuild that cache so you have a better experience when in the app. That's expected to take some network speeds with it as it's downloading history/etc. Even when the app is idle, we're still making continuous calls to the service to ensure you're continuing to have things up-to-date (presence, chat feeds, notifications, etc), that can also continue to require bw speeds. But in your case, looking to understand the specific repro steps that cause this in your case to see if there's indeed a real problem here from the Teams side, or if there's a network processing issue locally via the OS.
Thanks,
Sam Cosby, Teams Engineering PM
- garygraeffDec 02, 2022Copper ContributorThanks for your help on this. Here's the first pass of my testing this morning:
Rebooted laptop and restarted modem to start with a clean environment and network connection. Only app running is Edge with a single tab for the Ookla speed test:
8:00am - speed test
936.9 down, 41.22 up, ping: 22ms
8:04 - start Teams Windows client. No active meetings or chats
8:05 - speed test
86.53 down, 41.10 up, 38 ms
8:08 - speed test
85.23, 41.23, 26 ms
8:11 - speed test
85.86, 40.90, 30 ms
8:13 - sign out and terminate Teams Client (no meeting or chats during up time)
8:13 - speed test
190.21, 41.22, 31ms
8:16 - speed test
937.90, 41.19, 27ms
8:18 - start Teams web client in second Edge tab. No meeting or active chats
8:19 - speed test
932.17, 41.23, 24ms
9:26 - speed test
942.49, 41.23, 35ms
9:28 - speed test
713.39, 41.13, 25ms
8:29 - start meeting in Teams web client
8:32 - speed test during active meeting
105.10, 41.17, 27ms
8:36 - speed test during meeting
79.71, 41.21, 30ms
8:37 - terminate meeting
8:45 - speed test
77.62, 41.02, 32ms
8:51 - speed test
85.67, 41.26, 22ms
9:00 - start new meeting
9:37 - end meeting
9:37 - sign out from Teams web client and close tab
9:38 - speed test
930.24, 41.31, 25ms
I can do more of these tests throughout the day. Just let me know what else you need.
Thank you!
Gary- Sam CosbyDec 02, 2022
Microsoft
Teams alone shouldn't be causing this type of substantial network drop for you, so this is definitely concerning. Do you have a ticket open with Support on this yet by chance? We might need to dive deeper into a netcap to understand what's really going on via the network and see what's taking away the chunk of your network here (Teams or other) in this case.
- StaceeFraneDec 01, 2022
Microsoft
I will hand this off to an engineer on performance and ask them to follow up. Thank you.