Moved subnet to different site, Outlook Mac clients unable to connect to Exchange

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hi,

recently added new site in ad sites , services.
when configure appropriate subnet new site and move dc's new site, seems run ok 

however couple of minutes after change outlook 2011 our mac users starts have issues.
not connect exchange server.
(pings server still fine)

none of ip adresses have been changed, attached subnet x new site , moved dc site via ad sites , services.

idea why mac's feel cannot connect exchange server anymore?

kind regards,

dennis

thats reply.

the error is:
exchange server did not respond on of default ports.
telnet port working.

i've performed testing , think related mac os , not network issue.
mac's joined domain , when login new user runs expected.

mac os seems cache settings in user profile.

kind regards,

dennis



Windows Server  >  Platform Networking



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