I wasn't able to upload either, but I was using Safari.
1.) Are you using Chrome? Worked for me.
2.) When I hit post, the video won't play for a few minutes. Though it works like a charm after a brief period of time. Like you said, might be the internet speed..
Stay safe fam, hurricane Harvey looks terrifying.
thanks! and yes im using chrome. i didnt have a problem at all with the first video. but im not going to get to upset until after the storm. in the mean time i can still embed the videos i want to be a part of my new brand from my youtube channel right to steemit