Bug #106667 Lost connection to MySQL server during query
Submitted: 8 Mar 2022 7:04 Modified: 17 Mar 2022 5:33
Reporter: Tanawat Tiangtam Email Updates:
Status: Duplicate Impact on me:
None 
Category:MySQL Workbench Severity:S3 (Non-critical)
Version:8.0.28 OS:Windows (Windows Server 2019)
Assigned to: CPU Architecture:x86 (Intel Xeon 2124)

[8 Mar 2022 7:04] Tanawat Tiangtam 
Description:
Cannot connect to MySQL server when upgrade workbench from 8.0.27 to 8.0.28. When I click test connection it said "lost connection during query" but connecting from nodejs or 3rd party program is fine. If I try connecting by select require SSL it said the server does not support so I have to upgrade to this version.

How to repeat:
1. Install Workbench 8.0.27
2. Uninstall Workbench 8.0.27 and downgrade to 8.0.26
3. Try connecting to server

Suggested fix:
It should connect succesfully.
[8 Mar 2022 7:05] Tanawat Tiangtam 
Workbench Log

Attachment: wb.5.log (application/octet-stream, text), 42.39 KiB.
[16 Mar 2022 14:14] MySQL Verification Team 
Hello,

Thank you for the bug report.
Imho this is duplicate of Bug #85565, please see Bug #85565.

Regards,
Ashwini Patil
[17 Mar 2022 5:33] Tanawat Tiangtam 
Hi Ashwini,

How could this case duplicate to #85565 because even I try to downgrade it won't work. And I can't connect with mysql.exe too. Meanwhile the other apps can connect properly.