It looks like a slow internet. It happens to me as well. Mostly when I'm away and try to use internet from my mobile. What I usually do is use those Arabian streams or something like 150/180 kbs and it works.
It might be because you connect to the net through a proxy server in your LAN. I had the same problem in college where this was the case and I couldn't use Sopcast. Using software like Proxifier may help but it slowed down the speeds for me. It's worth a try though.
Try some hq flash stream if all fails
Try some hq flash stream if all fails

