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Uninstall Client Access From Exchange 2010

Posted on 2011-03-10
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Last Modified: 2012-06-27
I just recently installed an Exchange 2010 FrontEnd Server.  I need to uninstall the Client Access from the backend server.  How can I do this
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Question by:rsilver24
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by:Glen Knight
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using Control Panel under programs select uninstall a program, selecy Exchange 2010 and then click Change.
Uncheck the Client Access role and complete the wizard.
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by:rsilver24
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That does not work.  I am not able to uncheck the Client Access Role
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by:Glen Knight
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You sure you are clicking change?
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by:rsilver24
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Yes I seleced change
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by:Glen Knight
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OK from a command prompt run:

setup.com /mode:uninstall /roles:ca

From the Exchange 2010 installation media
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by:Glen Knight
Glen Knight earned 500 total points
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my mistake, in Control Panel you select uninstall not change and then uncheck the box :)
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by:rsilver24
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wonderful.  Well I ran the setup.com/mode..... and now my Outlook is not working.  HELP!!!!

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by:rsilver24
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here is the error I am receiving when I try to open Outlook

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by:Glen Knight
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It wnot be because you just uninstalled the CAS role.

Can you change your outlook profile to the new server?
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by:rsilver24
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No it does not work with the new server.  I reinstalled the CAS and it is still not working please help.  This is critical.  BTW OWA is working though.
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by:Glen Knight
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What error do you get on the outlook?
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by:rsilver24
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When you open it up it says the connection to the microsoft exchange server has been restored and then I get the attached error message
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by:Glen Knight
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There is no error attached?
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by:rsilver24
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The error reads " Cannot start Microsoft Office Outlook, Cnnot open the Outlook window.  The set of folders cannot be opened.  Microsoft Exchange is not avialalbe or there are network problems or the Exchange computer is down for maintenance"
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by:Glen Knight
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And what does the detail of the outlook profile say? Can you change it to be the new CAS server?

You will also need to update the Set-MailboxDatabase -RPCClientAccessServer value for the mailboxes.
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by:rsilver24
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No I cannot change it to the new server.  It keeps defaulting back to the old server.   I want to put everything back the way it originally was how can I do this?
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Glen Knight earned 500 total points
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On the server with the mailbox role on run:

Set-MailboxDatabase "mailbox database name" -RPCClientAccessServer "new server name"

Do this from the Exchange Management Shell and it should update to the new CAS server.
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by:rsilver24
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This did not work.  I am getting the following errors:

[PS] C:\Windows\system32>Set-MailboxDatabase 0744773635 -RPCClientAccessServer haliserv3
The operation couldn't be performed because object '744773635' couldn't be found on 'HALISERV2.hali88.org'.
    + CategoryInfo          : NotSpecified: (0:Int32) [Set-MailboxDatabase], ManagementObjectNotFoundException
    + FullyQualifiedErrorId : 12181AD7,Microsoft.Exchange.Management.SystemConfigurationTasks.SetMailboxDatabase

[PS] C:\Windows\system32>Set-MailboxDatabase Mailbox Database 0744773635 -RPCClientAccessServer haliserv3
A positional parameter cannot be found that accepts argument 'Database'.
    + CategoryInfo          : InvalidArgument: (:) [Set-MailboxDatabase], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,Set-MailboxDatabase

[PS] C:\Windows\system32>Set-MailboxDatabase Mailbox Database 0744773635.edb -RPCClientAccessServer haliserv3
A positional parameter cannot be found that accepts argument 'Database'.
    + CategoryInfo          : InvalidArgument: (:) [Set-MailboxDatabase], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,Set-MailboxDatabase
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by:rsilver24
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nevermind.  I put entered it as "Mailbox Database..."   And it seems to be working now.  Let me just double check
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by:rsilver24
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Ok everything seems to be working fine now.  I am a little concerned though.  It was working fine after I switched the CAS to the new server and then the old server rebooted itself 2 times and when it came back Outlook still was not working.  I did not do anything and then it started working again.  Very strange, but I need to keep an eye on this.  I will be out of the office tomorrow.  I will check back on Monday and update my situation.
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by:Glen Knight
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Have you uninstalled the old CAS server?
It will take a while for all the clients to update but that script will make them all re-configure to use the new CAS server.
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by:rsilver24
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No I did not uninstall the Old CAS server.  I did not want to do anything since everything was working fine.  I will attempt another uninstall next week.
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by:Glen Knight
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This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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