You use the Microsoft OLE DB Provider for DB2 to connect to DB2/400 in a Microsoft Host Integration Server 2010 environment. When you use a network type of SNA LU 6.2 (APPC) for the connection to DB2, the connection may fail, and you receive the following error message:
Invalid User ID or password. SQLSTATE: 08S01, SQLCODE:-568
Note This problem can also occur when you use the Managed Provider for DB2 to connect to DB2/400.
This problem occurs because the DB2 data provider incorrectly changes the password that is specified in the connection string to uppercase characters. This results in a logon failure.
The hotfix that resolves this issue is included in Cumulative Update 1 for Host Integration Server 2010.
For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2533330 Cumulative update package 1 for Host Integration Server 2010
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.