Host's video freezes

Hi @fritman99 

Does this problem seem to happen after some time in the Meeting - like after 30-45 minutes, or an hour - or can it happen any time?

Since covid, I have been sharing movies with friends.  I also have an i7 chip.  Although a fast machine is critical, I think the more important factor is whether your internet is fast or not.  Everyone I know who had a slow internet has experienced lots of freezing.  My internet is fast and no one has complained about me freezing or my videos freezing.

I have had this same problem on three webinars I have hosted in the last three weeks. I'm running Windows 10 and have successfully hosted more than 100 webinars over the last two years with never a problem, until this month. The same thing happens each time: About 20-30 minutes into the webinar event (ours last an hour), my host panel starts to degrade. First I won't be able to click on the icons at the bottom of the screen, but I can still see/hear the panelists. Then after another minute or two, I can't click on the chat or the participants window. Then ultimately I cannot close the Zoom window or end the webinar. The only solution is to completely restart my computer. Fortunately this does not crash the webinar because I have co-hosts and hosting duties automatically pass to one of them when I restart my computer. But it's still a huge problem because often I can't reboot fast enough to rejoin the webinar before it ends. 

BTW this is *not* an issue with my Internet, which is high speed and does not fail.

Anyone know why this might be happening and what I can do about it?

I teach online fitness classes.  I have been doing this since May of 2020 and have never had an issue with video until January of this year.  I read about the problems with screen flickering and turning green and unchecked the "optimize video quality" setting as instructed.  This worked for a week or 2.  The problem I've now started having as of the past few weeks, is that my video freezes as soon as I let participants into the room.  I can record a class with no participants and the video is fine for a full hour class, but when I teach a live class and participants join the meeting room, the video freezes almost immediately.  Sometimes it only freezes for a few seconds and then comes back, but by the time we are 10 minutes into a 1 hour class meeting, I am completely frozen.  They can hear me but cannot see me.  I have not changed my internet service and it is high speed.