Forum Discussion
Multi Attendee Video Conferencing - Unusable Quality
Hi Bradley Wood ,
It sounds very much to me that there are some network components getting in the way of Teams traffic. In a 1:1 call the data can be sent direct if the two parties are on the same network, but as soon as a third is added all need to connect via Microsoft.
The defined requirement for Teams is that the clients can send UDP traffic on ports 3478-3481 directly to the internet, if this is blocked it will use TCP 443 https as a fallback, but the quality is far worse. If that's also being forced through a proxy server, then it'll be even worse again. If remote users are forced to use a VPN then all this will apply to them, again it's recommended that they have split tunneling so can send their Teams traffic directly.
Here's the documentation about Teams networking https://docs.microsoft.com/en-us/microsoftteams/prepare-network
- ChristianBergstromMay 21, 2020Silver Contributor
StevenC365 Hey Steven, great post! But what got my attention was the "This has actually been the case for the entire past couple of months (the covid months)".
- Bradley WoodMay 21, 2020Brass Contributor
ChristianBergstrom - thanks to both of you for your comments. I should have mentioned, we've only been using Teams this past couple months, so we have no positive experience in prior months. I can see how increased use would cause some issues
StevenC365 We aren't forcing people through VPN's, so that isn't a factor. I'm at home and I've had 1:1 meetings with others at home, and others on premise. However whenever we add a third, it is always including someone on premise. An interesting component to investigate a bit further. The firewall comments were useful, we will look into that.
Thanks
- ChristianBergstromMay 21, 2020Silver ContributorFYI Bradley, our issues started a couple of months ago (covid). Before that the experience where pretty much flawless. We all work from home with direct connection to the internet (no vpn involved).