sbs2011 migration from sbs2003 can't get past "Run the Migration Prep Tool on the Source Server"

Migrating from SBS2003 to SBS2011 and the error "Run the Migration Prep Tool on the Source Server" won't allow us to continue. We've looked at the errors generated by the SBSLOG file and found the following, "caught exception when getting the source OS version. unauthorized exception access is denied"

We're using this link testing the WMI portion from the target to the source getting access denied errors.
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WORKS2011Austin Tech CompanyAsked:
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WORKS2011Connect With a Mentor Austin Tech CompanyAuthor Commented:
only way to get the error to go away was wipe the drives and reinstall the os.
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Meir RivkinFull stack Software EngineerCommented:
can u check which account the RPC service is using?
try with Local System account.
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WORKS2011Austin Tech CompanyAuthor Commented:
hi sedgwick, we changed this already to "local system account" and checked "allow service to interact with desktop" and we still get the error.
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Alan HardistyCo-OwnerCommented:
Please try the fix detailed in the following link:

http://www.fixkar.com/articles/kb/1023/

(In case the link breaks - for future reference):

On the source 2003 server, run dcomcnfg

Double click component services > Then computers >Then My Computer

1. Right click on My Computer and go to Default Properties tab
If this box is unchecked, checking the box will fix the root cause of the failure but still won't allow the migration wizard to run.

2. Make sure that the box labelled "Enable Distributed COM on this computer" is checked.
Verify that the "Default Authentication Level" is set to Connect
Verify that the "Default Impersonation Level" is set to Impersonate

3. Checked the default settings of the COM Security TAB and settings within this
page.

4. Reboot the SBS2003 server

5. Once the server is back up and running go the the SBS 2008 server (SBS 2011 in your case) and select the "Check Again" button.

6. The wizard should continue to run after the above changes.
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WORKS2011Austin Tech CompanyAuthor Commented:
We ended up restoring the sbs2003 server from backup and are putting together another plan to 1. attempt another migration or 2. rebuild the new server from scratch.

One question, is there a way to get rid of the screen mentioned above (Run the Migration Prep Tool on the server) error and get to the screen that prompts for fresh install or migration on the SBS2011.
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WORKS2011Austin Tech CompanyAuthor Commented:
only way to get the error to go away was wipe the drives and reinstall the os.
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