My website used to open just fine in the past when I use my University connection, but now since I transfered my website to another hosting company this problem started to appear. Some times the website open and sometimes I get this alot!:

Network Error (dns_server_failure)

Your request could not be processed because an error occurred contacting the DNS server. The DNS server may be temporarily unavailable, or there could be a network problem.

For assistance, contact your network support team.

Do you have any idea? I checked using websites checking tools and my website was running just fine on any other connection , ADSL, 3g but except my University connection.

Thanks in advance :)

UPDATE: When I open my website using the Real IP Server it does open just fine. But with my domain nope. Also, even other websites that are hosted on my server cannot be opened too