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Exchange is popping up asking for crediantials

Hi guys,

I have a windows 2008 server (it's a secondary DC) with exchange 2007 installed.
This box is popping approx every 5 mins

I ran auto discovery, I have modified many different setting  (like owa, oab) in the client access under the server tab, but still is popping.  for some users it disappears after a few seconds with out press any key for other it never disappears and despite  they type the password and user name keep showing up.

 pop up
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nttech
Asked:
nttech
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1 Solution
 
yelbaglfCommented:
Have a look at this KB...
http://support.microsoft.com/kb/312630
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yelbaglfCommented:
Clicked submit too quickly...have a look here as well.
http://support.microsoft.com/kb/820281
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nttechAuthor Commented:
Hi mate,

I changed the authentication mode, I matched Domain policies with local policies according the doc above, I tried NTLM V1, V2 etc....at the end it didnt work.

any ideas?
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Hendrik WieseInformation Security ManagerCommented:
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Hendrik WieseInformation Security ManagerCommented:
Also refer to the following article by demazter which is specifically designed for troubleshooting this issue:

Outlook continually prompting for username and password
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Hendrik WieseInformation Security ManagerCommented:
As mentioned have a look at the article created by demazter: He has written a guide on how to resolve this issue here: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2300-Outlook-continually-prompting-for-username-and-password.html Although the Article states that SP2 for Exchange should be installed it should now change to SP3
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nttechAuthor Commented:
we still have the problem, we dont know the root of the problem
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