Uninstall Client Access From Exchange 2010

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
rsilver24Asked:
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Glen KnightConnect With a Mentor Commented:
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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Glen KnightCommented:
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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rsilver24Author Commented:
That does not work.  I am not able to uncheck the Client Access Role
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Glen KnightCommented:
You sure you are clicking change?
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rsilver24Author Commented:
Yes I seleced change
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Glen KnightCommented:
OK from a command prompt run:

setup.com /mode:uninstall /roles:ca

From the Exchange 2010 installation media
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Glen KnightConnect With a Mentor Commented:
my mistake, in Control Panel you select uninstall not change and then uncheck the box :)
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rsilver24Author Commented:
wonderful.  Well I ran the setup.com/mode..... and now my Outlook is not working.  HELP!!!!

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rsilver24Author Commented:
here is the error I am receiving when I try to open Outlook

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

Can you change your outlook profile to the new server?
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rsilver24Author Commented:
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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Glen KnightCommented:
What error do you get on the outlook?
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rsilver24Author Commented:
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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Glen KnightCommented:
There is no error attached?
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rsilver24Author Commented:
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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Glen KnightCommented:
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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rsilver24Author Commented:
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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rsilver24Author Commented:
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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rsilver24Author Commented:
nevermind.  I put entered it as "Mailbox Database..."   And it seems to be working now.  Let me just double check
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rsilver24Author Commented:
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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Glen KnightCommented:
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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rsilver24Author Commented:
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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Glen KnightCommented:
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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