Bug #80837 Protocol connection mismatch

• Submitted: 23 Mar 2016 10:32
• Modified: 22 Nov 2016 0:47
• Reporter: Michael McVicker
• Status: No Feedback
• Category: MySQL Workbench
• Severity: S1 (Critical)
• Version: 6.3.6
• OS: Windows (version 10 with all current updates)
• CPU Architecture: Any

[23 Mar 2016 10:32] Michael McVicker

Description:
Receive protocol mismatch when trying to connect. Uninstalled and reinstalled multiple times, tried multiple protocols and still receive same error message every time.
I teach graduate level computer science courses and 70 out of 70 of my students received the same error. Students were running all different versions of Windows so it cannot be isolated to a single version of Windows or any single Windows update.
Had the students install 6.3.4 and all 70 students connected first time. 

How to repeat:
Just start Workbench in Windows and try to connect to the server. Error occurs each and every time.

[23 Mar 2016 10:36] Michael McVicker

Server version - 5.5.44.0+deb8u1-log(Debian)
Compiled For - debian-linux-gnu (i686)

[23 Mar 2016 20:34] MySQL Verification Team

Thank you for the bug report. Which kind of connection are you using?. Thanks.

[24 Mar 2016 6:29] Michael McVicker

I am using a dedicated IP connection but my students have all different types of connections and receive the same error.

[24 Mar 2016 14:46] MySQL Verification Team

Thank you for the feedback. Are you able to connect with the mysql.exe client? are you using SSL?. thanks.

[25 Mar 2016 0:27] Michael McVicker

I can connect with mysql.exe with no issue. Workbench is the only issue. I have tried SSL and without SSL and the exact error occurs.

[22 Oct 2016 0:47] MySQL Verification Team

Please try version 6.3.8. Thanks.

[22 Nov 2016 1:00] Bugs System

No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".