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Viren_Manek's avatar
Viren_Manek
Brass Contributor
Mar 28, 2021

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 ...
Black Screen
Sharing
Teams App
  • Tenny_Aus's avatar
    Tenny_Aus
    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

     

JulieKeena's avatar
JulieKeena
Copper Contributor
Jul 01, 2021

I logged a case with Dodo on 28/5 & follow it up with them weekly. I have been advised they are aware of the issue & their escalation support team is working on a resolution with Microsoft and other ISPs also affected. No eta when it will be resolved sorry.

 

The only 'fix' is to change ISP which I can't do as I live in a rural area & Optus/Dodo/I-Primus etc are the only ones available. I just keep hot spotting my mobile when I need to share my screen & once the session has started reconnect to my home wifi which seems to keep the port opened & I can keep sharing. If I stop sharing the port closes & I have to go back through hotspotting phone.

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