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If you have Exchange 2010 in your Site , If you create a new Active Directory site , your Exchange may stop working ,

We will see why ?

Having only the Default-First-Site-Name, You would have not Define the subnet for your site,

If you have only one site , Which is the default website then All the subnet will look into your Default Active Directory site (Default-First-Site-Name)

But if you create a new site then your Exchange won’t know which site to look into , because of the not defined subnets

and Your services may stop and Restarting the server might struck in “Applying computer settings”

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To avoid this situation

Before your Create a new Active Directory site

Define the Subnet for your your Default Active Directory site (Default-First-Site-Name)

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Now you can type the specific subnet

 

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Now your Subnet is defined to your Default Active Directory site

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Great !!

Now you can overcome some downtime !!

Regards

Satheshwaran Manoharan