Hi,We having a problem with OWA Address book, when the users opening there OWA, and open a new mail and they click on TO, we can see our address list with 50 of the users (the first page of address book) in the organiziation presented, and we can click on the user name and then send the e-mail to that user, but here is the problem,when user in the search box type the name of some one he get this Error:Could not connect to directory server. If the problem continues contect you support.Also we have more then a 200 users in our organization, and we can see the first 50 users in the address book, when we cliek on the next to go to next page of the address book we get the same Error.We are using EBS 2008, that is Exchange 2007 SP2 en server 2008 SP2Any idea why is this heppening?Shahin

Shanin,Have a look at this post:http://www.microsoftnow.com/2008/04/error-opening-address-book-in-outlook.htmlRegards,Johanblog: www.johanveldhuis.nl

Hi Johan,Thanks for your reply, but this is not the error that I get, when I click to go to next page or to search for an user in the address book I get this:Could not connect to a directory service, if the problem continue contect your support.So I can open the OWA I can send and recieve mail but problem is with Address book search or when going to next page of address book.your link talk about:While trying to open Outlook Web Access hosted on an Exchange Server 2007 Client Access Server, I get an error stating that Outlook Web Access could not connect to Active Directory, followed by a detailed stack trace:ShahinShahin

Shanin,No the link speaks about opening the address book in OWA which runs on the CAS. Besides the error about not reaching the directory server is there any info displayed further. Can you tell me something more about your config ?Regards,Johanblog: www.johanveldhuis.nl

Hi johan,Thanks for the update,We are using EBS 2008, that has Exchange 2007 SP2 and Server 2008 SP2, the hub transport is on one server and the Edge transport rule on the TMG server (ISA 2006),I did find an artical that says we should remove the chack mark beside the Link Translation in the OWA access rule in the TMG.But before doing so I would like to know that removing this check mark would not create other issue in the organization.Take a look at this link:http://blogs.technet.com/essentialbusinessserver/archive/2009/11/05/owa-address-book-could-not-connect-to-a-directory-server-errors-on-ebs.aspxThanks,ShahinShahin

Shanin,Before doing such kind of things always ensureyou got a good backup.Regards,Johanblog: www.johanveldhuis.nl

Hi, Regarding whether removing this check mark would not create other issue in the organization, I recommend you post you question to EBS Newsgroup as it is a an EBS specific issue. https://connect.microsoft.com/ebs08/community/discussion/richui/default.aspx?wa=wsignin1.0 ~~~~~~~~~~~~~~~~ Mike Shen TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com ~~~~~~~~~~~~~~~~