If you guys run into this again, please try to view a Gamespot video and see if you're seeing the same behavior.
Hey edgework. I tried playing 2 videos from Gamespot (The Gist and Destiny - Exclusive Content), and encountered the same issue. Also currently can't play the latest mailbag video or the latest inFamous quick look on GB either.
Don't know if it helps, but its currently 11:38PM here, and I was able to stream GB videos without problems during the afternoon.
EDIT: It's 11:47PM here now, and suddenly everything appears to be working again.
I'm on 150Mb down, 30Mb up fibre in Ireland too, so maybe there's something up?
Just wanted to post that I'm also in Ireland and have been encountering issues streaming as well. I'm on a much slower connection (1.8Mb), but can usually stream on low quality without issues. But today, I cant get a single video to play properly (unless its available on YouTube.) Downloading a video is also incredibly slow (downloading the latest Metal gear scanlon episode at about 11 KB/s). Using another browser makes no difference.