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Q216292: XFOR: Reasons for "Unable to logon…" Error Message

Article: Q216292
Product(s): Microsoft Exchange
Version(s): winnt:5.5
Operating System(s): 
Keyword(s): exc55
Last Modified: 02-OCT-1999

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
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SUMMARY
=======

When you use the Migration wizard to migrate account information from LDAP
directories, you may receive the following error message:

  Unable to log on to the server. Please verify server name, port, account name
  and password.

You may get this error message for a number of other reasons, listed in the "More
Information" section of this article.

MORE INFORMATION
================


If you get this error message, check the following:

- LDAP Server Name

- LDAP Port
  This is typically TCP/IP port 389 or port 636 for LDAP over SSL.

- Account Name
  You must use the full distinguished name (DN).

- Password

- Default Naming Context
  For servers with a default naming context specified, you must specify this in
  the Internet Directory server name field. For example:

  ldapserver/o=org

- ADSI 2.0
  Verify that the correct version of ADSI 2.0 is installed. For additional
  information, please see the following article in the Microsoft Knowledge
  Base:

  Q216290 XFOR: Verifying which Version of ADSI Is Installed

Additional query words:

======================================================================
Keywords          : exc55 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbinfo

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