Forum Discussion
Viren_Manek
Mar 28, 2021Brass Contributor
When screen sharing people see black screen
Hi, I had Thinkpad laptop and was using additional monitor on and off without any issues and suddenly since 2-3 weeks, when I am trying to share my screen, people are just seeing black screen. This ...
- May 20, 2021
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
Tenny_Aus
Jul 06, 2021Copper Contributor
Hi all,
hope this might help:
we had more than 10 users had this issue over a month ago, turned-off "Insert Quality of Service (QoS) markers for real-time media traffic" in Teams admin settings fixed the issue for all initially. However, the problem re-occurred for 3 users used to have the problem and 1 new user a couple of weeks ago. We then turn-on "Insert Quality of Service (QoS) markers for real-time media traffic" on late 25th Jun, and turn-off the setting on 27th Jun early morning. it fixed the issue for those 4 users since. All our users do not have the issue since. The key here is not to change the setting immediately. Hope it work for you.
hope this might help:
we had more than 10 users had this issue over a month ago, turned-off "Insert Quality of Service (QoS) markers for real-time media traffic" in Teams admin settings fixed the issue for all initially. However, the problem re-occurred for 3 users used to have the problem and 1 new user a couple of weeks ago. We then turn-on "Insert Quality of Service (QoS) markers for real-time media traffic" on late 25th Jun, and turn-off the setting on 27th Jun early morning. it fixed the issue for those 4 users since. All our users do not have the issue since. The key here is not to change the setting immediately. Hope it work for you.
jcloud9
Jun 12, 2025Copper Contributor
Thank you Tenny