Forum Discussion
When screen sharing people see black screen
Hi Viren_Manek;
Believe is ISP related.
Change the QoS setting in Teams fixed the problems for us.
Your tenant admin needs to change this:
Teams Admin> Meetings > Meeting Settings > Network
Turn off -> Insert Quality of Service (QoS) markers for real-time media traffic
Also update Teams client to the latest version.
Log-out and log back in.
Restart your Teams app.
You may need to wait for the change to kick in.
Good luck.
Regards
Tenny
Hi Viren. I have what appears to to be the same problem when using MS Teams. My symptoms are the same as others have reported. The Teams App on Win10 is giving the problem. Using it through the browser is fine. My ISP is Dodo. Have you found a solution yet?
1. I cannot share my screen. All other users see when I share are black windows. My video that I share is very jittery and will stick with one image of me for minutes before refreshing, only to get stuck again. My image quality is really bad. I can see and hear other participants with no problems to a high level of quality. My audio to them is fine. This started for me about two months ago and happens consistently.
User Profiles with Teams Access.
2. I have three Teams profiles from different organisations and it happens no matter which combinations I use and with other people.
Computers
3. I have tested between two computers side-by-side and can replicate the problem. They are:
a: Lenovo T14 AMD, Windows 10 19043.985 fully reinstalled to a blank HDD on 19 May 2021. MS Teams 1.4.00.11161 (64-bit). It was last updated on 19/05/2021. No AV has been installed yet.
b: Lenovo T430u, Windows 10 19041.985. MS Teams 1.4.00.11161 (64-bit). It was last updated on 18/05/2021.
3.1 I have tried both the built-in webcams and a Microsoft webcam.
4. I have tested with other colleagues running other brands of computers. I can see and hear them fine. They experience the symptoms above when trying to see me.
5. Both computers are have fully up to date drivers.
5.1 SpeedTest reports a 51Mb download and 16Mb upload on the web connection.
Troubleshooting:
6. I have fully bypassed my Wifi and connected directly via CAT6 to the Router/Modem for both computers.
7. I have tried two different modems. 1. The Dodo supplied Huawei HG659 AND a Netgear DB200 (fully patched)
8. I have tried initiating a VPN connection using Windscribe and the problem persists.
Getting it to work:
9. I have connected both of the computers above via wifi to a Telstra supplied NetGear Nighhawk LTE Mobile Router with Telstra data SIM. (Thereby removing Dodo from the equation entirely). Teams works perfectly with no interruptions between my computers and with other colleagues.
To me this points to the ISP being the problem.
Has anyone come up with a workable solution apart from chaning ISP?
- Problem solved. And as already recommended.
I changed ISP from Dodo to Internode.
No more issues.- Today I received a message from Dodo saying that "Our Network team made changes to fix your MS Teams App issues and should now be resolved. Please let us know if you still need help."
DarylHartwell I received the same SMS & can confirm it is now all resolved
- Hi,
As an alternate solution, I am using teams via Web which works perfectly fine with same ISP.
I think the issues is with using app with certain ISP and that is strange. If I can work with web then why cant MS update or propose any settings that can resolve this issue.
Thanks and Regards,
Viren- Hi Viren, I have been troubleshooting with Dodo. Do you happen to have a TP-Link Deco Mesh Wifi network? Cheers, Daryl.
- Hi Daryl,
No, I haven't contacted Dodo and also I do not have TP-Link Deco Mesh Wifi.
I have Dodo HG659 Home Gateway Modem.
Is this to do with Modem?
Tx,
Viren
I agree. Thanks Viren. Have you logged this with Dodo support, and if so, do you have a ticket reference number?
