Exchange 2003 to 2010 swing migration - stop Information Store service - Outlook prompts for password

I have performed a swing migration from Exchange 2003 to 2010.  I'm in the process of decommissioning the old Exchange 2003 server and thought I would just stop the Exchange services before uninstalling to see what happened.  After I stopped the Exchange 2003 Information Store service quite a few user's Outlook (various versions) started prompting for a username/password.  The password will take for a while but will return and will prompt when launching Outlook.  All mailboxes have been migrated to 2010 except for the old Exchange admin account and an old Blackberry admin account.  Public folders have been replicated to 2010 and the old 2003 replicas removed, mail flow works well, same for OWA and Activesync,  Everything seems to work well other than this annoying Outlook password prompt.  One odd behavior is my computer at the office, joined to the domain, (Windows XP/Outlook 2010) prompts for the password when the Information Store service is stopped.  But my home computer via a VPN (Windows 8/Outlook 2010), NOT joined to the domain, doesn't prompt for a password.  Same user account being used on both machines.  Both machines are running Outlook Anywhere.  Any ideas?
CommerceREAsked:
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Gareth GudgerConnect With a Mentor Commented:
At the top of the dialog does it say which server is prompting for the credentials?

Also, with Outlook open, hold down CTRL and right click on the Outlook icon in your Taskbar. From the pop-up menu select "Connection Status" and see if there are any old references to your old server.

Also, repeat the above but select "Test Autoconfiguration". Uncheck the two Guessmart boxes, put in your email and click Test. Looks for anything wrong here, including references to old servers.
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nashim khanExchange AdministratorCommented:
Hi,

Please refer the below link for 2003 to 2010 swing migration.

http://www.petenetlive.com/KB/Article/0000234.htm
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Will SzymkowskiSenior Solution ArchitectCommented:
When you open Outlook hold crtl+right click the outlook icon in the system tray. Click "Connecton Status" and this will show you which servers the user is connecting/authenticating to. You can then see if it is trying to connect to to your Exchange 2003 server.

Also, chcek your authentication methods on your Exchange 2010 CAS server.

Will.
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Simon Butler (Sembee)ConsultantCommented:
Check the properties of the Mailbox Database and ensure that the correct public folder store is selected. By default it will be using the Exchange 2003 database.
Check the OAB distribution method and ensure the Exchange 2010 server is setup to do it correctly.

Have you replicated all public folders off the old server? Including the system folder - so Public Folder Instances is empty?

Simon.
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CommerceREAuthor Commented:
Thank you for the responses -

diggisaur - nothing at the top of the dialog prompting for a password.  "Test Autoconfiguration" looks good (no references to the Exchange 2003 server).  However while the Information Store service was stopped on Exchange 2003 I performed the "Connection Status" and do see a reference to the old server (Exchange) and it looks like a Public Folder.  I have attached it for review.Outlook connection status
nashimkhan123 - That is the article I used for performing the swing migration.  I believe I have successfully followed procedure.

spec01 - Yes, I do see it trying to connect to the old Exchange server as note above to diggisaur.  I believe the authentication methods on Exchange 2010 CAS are good.

Sembee2 - The mailbox database where my mailbox is located does point to the Exchange 2010 Public Folder.  OAB is going to the \Default Offline Address List which the generation server is Exchange 2010.  Under Distribution all Client Support are checked.  Enable Web-based distribution is unchecked and Enable public folder distribution is checked.  Maybe there are some system public folders that never were replicated.  I'm replicating now and will remove the replica from Exchange 2003 when completed.  When you mention "so Public Folder Instances is empty" how do you do that?
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Gareth GudgerConnect With a Mentor Commented:
On Exchange 2003 in ESM, under Public Folders, you should see a subfolders called Publc Folder Instances. This should be empty. Try right clicking on Public Folders and doing "Move All Replicas".

Also move the Public Folder hierarchy from the 2003 Administrative Group to the 2010 Administrative Group. Just drag it from the "Folders" node to the 2010 "Folders" node works fine. You do this in ESM on the 2003 server.
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Will SzymkowskiSenior Solution ArchitectCommented:
Sorry i did not realize that Diggisaur had mentioned that, totally skipped that. Anyways based on the connection status you are still pointing to public folders in some fasion or another regardless of your Default OAB server. If you are using Outlook clients 2007 or higher they use EWS (Exchange Web Services) to obtain address book info, free busy etc. It is recommened that you enable this so that in the event you are using newer clients are in the environment they will be able to retrieve Exchange data accordingly.

Will.
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CommerceREAuthor Commented:
The ctrl right-click on Outlook in system tray pointed me to a public folder.  Turned out to be one public folder and one system public folder that were totally confused.  I finally got public folders removed and was able to decommission the Exchange server.  Thank you to everyone for the help.
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