I got the following error while installing Exchange 2010: “There are no more endpoints available from the endpoint mapper. (Exception from HRESULT: 0x800706D9)”

I looked up HRESULT 0x800706D9 which is defined in winerror.h as EPT_S_NOT_REGISTERED with the same error text.

I looked at the ExchangeSetup.log in C:\ExchangeSetupLogs and this indicates that the error occurs when the install-ADTopologyService cmdlet tries to add some rules to the firewall:

The Windows Firewall service was disabled, so I set it to Automatic, started it and enabled it and then the setup ran without errors

I encountered another interesting error during Exchange 2010 installation today. During the Organization Preparation I got the following error:

The setup.log doesn’t give us much more detailed info:

I remembered from a Tweet by Helge Klein recently that the Active Directory schema has no mechanism for enforcing uniqueness of an attribute.

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Today I was testing the installation of Exchange 2010 in a VMWare sandbox environment. We created the sandbox to test migration from a 2003 AD and Exchange environment to 2008 R2 with Exchange 2010.

We used a P2V to get real copies of the Active Directory and the AD upgrade to 2008 R2 was already tested.

But during the Exchange installation in the sandbox I got the following error:

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In Exchange it’s possible to hide a Mailbox from the (Global) Address List. You can do that in the Exchange System Manager:

But after you have hidden a Mailbox you cannot create an Outlook profile for it (or add it as an extra mailbox).

When you click Check Name in the wizard you’ll get an error:

The common workaround is to remove the “Hide from Exchange address lists” setting, create the profile (or add the Mailbox) and afterwards set it again.

Once the profile is created it all keeps working.

There is an easier solution though!

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