I'm now experiencing this issue as well. Getting 30/1 on speedtests, cannot stream YouTube at 720p.Edit to add: Problem occurs using both Google DNS and TekSavvy DNS. No difference. Something is up.
Same here. I've got an Extreme circuit on a 4x4 bonded SB6120 on the Richmond Hill POI. In the AM I can watch 1080p content without any issues while at night it's miserable.This can't be blamed on node congestion as switching to my backup Rogers Express circuit solved the problem.
I went to go test just now with some of the videos posted on page 4 and I was getting those buffering errors.Ran a speedtest though, and I was getting only 5Mbit/s down on 28/1. Released/Renewed my DHCP address (in the router GUI. Power cycling the router will the same result)Playing 1080p videos just fine now without buffering. I doubt this will help many since it seems there's some POIs out there that are heavily congested. But worth a try.