Bug #69492 Cannot Connect error when using legacy authentication
Submitted: 17 Jun 2013 12:46 Modified: 9 Jan 2015 7:47
Reporter: Alex Whitman Email Updates:
Status: Closed Impact on me:
Category:Connector / C++ Severity:S2 (Serious)
Version:6.0.2 beta 1 OS:Windows (7)
Assigned to: CPU Architecture:Any

[17 Jun 2013 12:46] Alex Whitman
When trying to connect to an older MySQL server which uses legacy authentication, an error dialogue pops stating "Cannot Connect".

How to repeat:
Try to connect to a server using legacy authentication.

Suggested fix:
Allow legacy authentication.
[17 Jun 2013 12:47] Alex Whitman
Screenshot of error dialogue

Attachment: wb.png (image/png, text), 30.86 KiB.

[17 Jun 2013 12:49] Alfredo Kojima
Thank you for the bug report.
[4 Sep 2013 11:09] Steve Kimpton
I had this problem in 6.0.6 and found a near fix on one of the forums.

From the home page: 
right click on the database button, 
choose Edit connection, 
Click Advanced
Add useLegacyAuth=1 to the bottom of the 'Others' box

The reason it's only a near fix is the error persists when trying to use data export.
[22 Jul 2014 14:08] Paul DuBois
Noted in Connector/C++ 1.1.4 changelog.

Connector/C++ now supports the a useLegacyAuth connection option,
which corresponds to the MYSQL_SECURE_AUTH option for