This article applies to:

• MailMarshal SPE
• SEG Array Manager on same server as SPE admin components
• Workgroup installation 

Symptoms:

• The Array properties > Credentials "Test credentials" check fails with a known valid account.

Causes:

• Windows security (UAC) does not grant true administrative permission to local administrator accounts.

Resolution:

The best practice resolution to this issue is to join the server to a domain and use domain security.

1. In RegEdit, navigate to:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
2. Set the value of the DWORD entry EnableLUA to 0 (zero)
3. Restart the server.

Notes:

As always exercise due care when editing the Registry.