i was surfing the net with my 4G mobile hotspot when suddenly a web paged i watched an hour ago, i could not watch the same web page again due to some parental control web guard or something. I never requested web guard through t-mobile or nothing. i contacted t-mobile's customer support about this and they told me i don't have the web guard option activated in my account.
funny enough, i connected another computer (windows XP) to the same hot spot and i could watch the website on this different computer!!!!
on the laptop that i cannot see the webpage, which happnes to be a mac book air (safari), i do not have any parent control on, i deleted the internet history, i re-started the computer and it still shows a web guard message when i tried to load this page.