Internet Explorer can not display the page

Something strange is happening to me since quite some time since there are pages that will not let me go into them before that could be thought that they were saturated but can no longer be, I get the message, Internet Explorer can not display the page, , it also happened at more pages.
Someone I can explain it? Thank you.

It may be something passenger.
Are you still going the same?

Thank you for the interest, as I settled, had put the wrong dns.
We appreciate your help.
Thank you. A friend for what you want.