Share desktop on multiple rooms

Hi to all, my question: is it possible to share same desktop or desktop app on multiple rooms from my pc or there are some limitations? i ask this because i have succesfully installed jitsi and two jvb balancing machines and i succesfuly share same desktop over two rooms but starting from the third, fourth and so on share stop working, but if i return to only two rooms share restart.

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If you ignore the screensharing, if you open 3 tabs in chrome does this work? If not check your firewall, portforwarding and that jvb announces correct public address, for more info check advanced section of quick install guide https://jitsi.org/qi

Thanks for your reply. My installation works well opening also three or more tabs in chrome.

So it sounds to me like a bandwidth issue on the server or on the client.

Thanks damencho, but test was made between 5 pcs connected to our installation in local LAN setup so all 5 participants and jitsi server are in a 1 gbit LAN and 3 pcs are i5 intel with ssd disk
and 2 i7.

Can you show a screenshot? Also jvb is installed from package right? There are some important sysctl settings about network buffers. https://github.com/jitsi/jitsi-videobridge/blob/master/config/20-jvb-udp-buffers.conf

Thanks damencho, yes jvb and all packages on ubuntu 18.04 are installed from official jitsi repo; and yes all sysctl’s jvbs machines configured with udp buffers mentioned. I’m able to take screenshots tomorrow.