I am unable to connect POP server

I recently switched dialup from dsl and after that whenever i try to recieve or send me pop email through outlook express 6 the following error displayed at the end.
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The host ‘mail.cyber.net.pk’ could not be found. Please verify that you have entered the server name correctly. Account: ‘mail.cyber.net.pk(1)’, Server: ‘mail.cyber.net.pk’, Protocol: POP3, Port: 110, Secure(SSL): No, Socket Error: 11004, Error Number: 0x800CCC0D
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Whereas i found no problem in receiving http emails through outlook express

Anybody have solution?

Regards