I am still having trouble. The lastest verson of Safari 14.0.1 and macOS 10.15.6. I can playback video just fine if my second monitor is not connected. So, browser obviously works so to heck with the idea that there is a flash vs html5 TS-Stream going on and at fault. This is just another dodge of the issue saying that it's a problem with the end user and not taking responsibility for thier own problems. If it was my browser or OS then why can I play it without second monitor/TV?? That is the question. When I want to view a program, I have to disconnect the second monitor. I am running apps in my day to day work that require second monitor, so I gotta stop working just to watch/listen to a show in the background? I guess the technician will come back, oh but you have an iPad or iPhone that you could watch it from. Well yea sometimes... But I grew to like the webpage i could load up on the mac and watch a show or just listen to it while I am getting other things done. Now, you have me re-configuring my apps every time I disconnect my secondary display adapter. Just not convient like it used to be. And it's not on my side. Some property is changed on server side.
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I just fixed my issue with this error. Looks like there was 2 issues going on.
1. I have another TV (not connected to xfinity) connected to my iMac as a second monitor. It is connected via a lighting to HDMI cable. Brand new LG TV. So I disconnected it, and the problem got better but still didnt take care of it all.
2. This is what really helped alot of issues. I had installed Adobe flash a few years ago, I thought I had updated to current version. I just removed it. And so far all the sites that have video content work So Safari may not need adobe to play flash content now?
So uninstalling Adobe, and removing the second monitor cable proved to resolve this issue.
I still dont know why removing the second montior (TV) had any reason to cause issues. Still working on a solution to have my TV connected to the computer at the same time able to watch on Xfinity Stream.
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