DOCUMENT:Q216292  02-OCT-1999  [exchange]
TITLE   :XFOR: Reasons for "Unable to logon..." Error Message
PRODUCT :Microsoft Exchange
PROD/VER:winnt:5.5
OPER/SYS:
KEYWORDS:exc55

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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:

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

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