I was having all sorts of problems trying to watch it at work earlier in the week too. Good thing today's matches arent during my work hour.
It might be due to the server blocking certain sites.
I also had the same problem.
I am at a Resort with a slow WIFI connection and couldn't get on.
I made my Samsung Edge a Hot Spot and logged on.
Once I could see the pool tables, I connected to the Resort Internet.
It took a minute longer but It did come up.
Thanks guys, I'm thinking it might be the security here at work. Guess I'll be using my phone. At least I have that.