Can't open the site from time to time...

Hi folks

I have very interesting issue. I can’t open www.excelforum.com site from time to time from my home computer. . Furthermore, when I am unable to open the site I can access any other site. (Yahoo!, Google…).

Yesterday it happened again, and I asked a friend of mine to visit this site from his laptop to check if the site is available at all, and I gaped in astonishment when he could. Then I found out the IP address of your website (67.225.213.199) and pinged it several times. It returned “Request Timed Out” in all attempts

I’m running IE 8, Opera, Mozilla (the same result from all browsers). Kaspersky Antivirus 8.0. Tried to turn off firewall, disabled Windows Defender, deleted browsing history, cash, cookies etc.

Please help me, say me what to do ‘coz I am bored to death with this issue

trace the route
tracert 67.225.213.199
at least this will tell you how far you are getting
you should see at the beginning your default gateway which is your router/isp probably a 192 address and when it gets to forum the forum name/ip address
heres the end of my trace
24 118 ms 126 ms 118 ms ae-11-53.car1.Chicago1.Level3.net [4.68.101.66]

25 127 ms 118 ms 118 ms ae-11-53.car1.Chicago1.Level3.net [4.68.101.66]

26 127 ms 126 ms 126 ms WBS-CONNECT.edge5.Chicago1.Level3.net [4.71.182.
14]
27 126 ms 126 ms 127 ms lw-dc2-core3-ge1-9.rtr.liquidweb.com [209.59.157
.10]
28 128 ms 124 ms 129 ms lw-dc2-sec3-dist6-po1.rtr.liquidweb.com [209.59.
157.122]
29 126 ms 128 ms 127 ms host.excelforum.com [67.225.213.199]

Trace complete.
if it stops before then ,make a note of the ip last reached and if it persists complain to your isp/government or whatever lol