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Exchange 2010 connecting to wrong DC and GC after creating new site

Posted on 2011-05-01
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Hello experts,

I'm trying to figure out why Exchange 2010 server is connecting to the wrong GC and DC. This started happening after we setup a new site in sites and services for an additional office and we added a domain controller there. The exchange server seems to think that this new site is "in-site" and the rest of the DC's and GC's that are in the default first site name are out of site. I'm thinking it is a DNS issue but i'm not sure where to look. The new site domain controller was added as an additional to an exisiting domain.

Could you point me in the right direction?
Thanks

 exchange-log.txt
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Question by:m3mdicl
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JBond2010 earned 2000 total points
ID: 35501138
In Sites and Services, you should not be the default site. You should be creating the Sites and Subnets and then move the respective DCs into their Sites. You need to make sure that you configured the Subnets correctly - check the ip schema that you create for the new Site.
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by:JBond2010
ID: 35501248
To configure your Sites and Subnets:

Open Active Directory Sites and Service > Right Click on Default-First-Site-Name and choose Rename > for example type HeadOffice and then press Engter > Right Click Subnets and choose New Subnet > In the Prefix box, for example type 192.168.1.0/24. All your DCs for your HeadOffice would go into this Site.

You need to do the same for any other Sites and Subnets you need to create. For example, the next you might call BrachOffice with the Prefix of 192.168.2.0/24 and you move all the DCs of this BranchOffice into the Site.
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Author Comment

by:m3mdicl
ID: 35501257
Hello Jbond2010,

I seperated out the sites and dc's as you suggested and exchange seems to be using the correct servers now. However, users are not able to access their mailboxes through Outlook Web Access or Active Sync. They are able to access them through the Outlook client. Event log only shows the connection failures from active sync. Any suggestions?
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Author Comment

by:m3mdicl
ID: 35501264
Also, in Sites and Services, since there is only one connection to each office, do i continue to use the DefaultSiteIPLink?
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by:JBond2010
ID: 35501277
Important to note, Exchange does not have any NTDS settings. So, it does not participate in replication. It is in Sites and Services as a service.
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by:JBond2010
ID: 35501299
To configure your Sites and Subnets:

Open Active Directory Sites and Service > Right Click on Default-First-Site-Name and choose Rename > for example type HeadOffice and then press Engter > Right Click Subnets and choose New Subnet > In the Prefix box, for example type 192.168.1.0/24. All your DCs for your HeadOffice would go into this Site.

You need to do the same for any other Sites and Subnets you need to create. For example, the next you might call BrachOffice with the Prefix of 192.168.2.0/24 and you move all the DCs of this BranchOffice into the Site.    

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Author Comment

by:m3mdicl
ID: 35501338
It took a little while but everything appears to be normal now. Thanks for your help.
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by:JBond2010
ID: 35501340
Have a look at the link below and this should help to explain things more clearly regarding Exchange 2010 in Sites and Services.

http://www.msexchange.org/articles_tutorials/exchange-server-2010/management-administration/exchange-autodiscover.html
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by:JBond2010
ID: 35501351
@ m3mdicl, your very welcome and I am glad everything is working for you now.


Kind regards,

JBond2010
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