Thank you @chDVRuser and @bnhf. I'm not sure what did it, but after a couple of tries, it is working now. I was able to ping www.youtube.com using the Console in the OliveTin container. I copied the M3U from @bnhf from a few posts up, which added the Big Sky stream to his three. It still didn't work, giving me the same error.
I tried again, this time changing the channel-number in the M3U supplied by @bnhf (there were two with 0.1000). I also added a fifth YouTube stream to the M3U. I then ran the OliveTin action, and now it all works. I'm not sure what the trick was, but happy that it is working. Thanks for this, and thanks for the help!


