I'm having problem when I tried to access to some websites/forums. For example: www.steampowered.com. On top of this, my steam installer cannot install completely, it keeps trying to update and failed to do so then eventually error messages like 'can't connect to steam server', etc. were prompted. I tried to ping / trace rout / path ping to www.steampowered.com it gave me "Destination host uncreachable". I don't exactly know if the problem lies on my end or actually on my ISP.
Would appreciate if anyone could show me some light on this.