trigs;394635 wroteno phone data. also pc is not on wifi network.
Well doesn't really matter that your pc is not using wifi, it is still using the same router I assume. I would still try your laptop at a different location.
Also can you ping pokerstars.com by both dns name and IP address?
Go to a command prompt and enter "ping www.pokerstars.com" then "ping 77.87.181.63".
You should get 4 responses like "Reply from 77.87.181.63: bytes=32 time=226ms TTL=48" to both pings.
One other thing, did you try at least 2 browsers, ie Internet Explorer and Chrome?