• On windows 2008, you may get the following error when click Test LDAP Settings.

2015-05-19 13:26:14.563 :Logon failure: unknown user name or bad password.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)

   at System.DirectoryServices.DirectoryEntry.Bind()

   at System.DirectoryServices.DirectoryEntry.get_IsContainer()

   at System.DirectoryServices.DirectoryEntries.ChildEnumerator..ctor(DirectoryEntry container)

Please refer to the following to resolve this issue:

1)  Open the Start menu.

2)  Type "Local Security Policy" in the search box.

3)  Open Local Security Policy.

4)  Navigate to "Local Policies" > "Security Options" and then locate the entry named "Network security: LAN Manager authentication level". Double click it.

5)  In the dropdown list choose "Send LM & NTLM - use NTLMv2 session security if negotiated.

6)  Click OK.

• On windows 2003, you may get the following error when click Test LDAP Settings.

2015-05-19 13:26:14.563 : The authentication mechanism is unknown.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)

   at System.DirectoryServices.DirectoryEntry.Bind()

   at System.DirectoryServices.DirectoryEntry.get_IsContainer()

   at System.DirectoryServices.DirectoryEntries.ChildEnumerator..ctor(DirectoryEntry container)

And please try the following to resolve this issue:

1) Go to Internet Information Services (IIS) Manager > Application Pools > AppeonAppPool > Advanced Settings and change the Identity to NetworkService.

2) Restart IIS.