Fix MySQL Connection Refused in Docker Containers - Resolve Chrome Error 12 Without Factory Reset-Chrome SSL Protocol Error: Simple Fixes That Work

Updated 2026-06-14 05:24:44macos-help

Fix MySQL Connection Refused in Docker Containers - Resolve Chrome Error 12 Without Factory Reset-Chrome SSL Protocol Error: Simple Fixes That Work

Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

Restart the affected app after changing permissions or configuration files.
Test the same workflow in a clean browser profile or a temporary user account.
Compare the result on another network if the error may be connection related.