NuclearVision wroteYeah its not bad but i wonder is it not enough for 1080p streaming?
It buffers every half a sec.
i posted earlier the bandwidth needed to support 1080 streaming , not matter what your codex are you still need more than 20 Mbps for HD.
you can start by eliminating first suspects : hard disk , CPU and graphic card by simple tests on your laptop : put an hd movie on your laptop and try to watch it via HDMI while monitoring the resources ... ( i am pretty much sure they are not the problem ) .
when this is done you need to look at your router , is it possible to connect internet on your laptop so i can check it by teamviewer ?!