MySQL Connection Refused on Port 3306: Causes and Fixes - Resolve Audio Sync Issues in FFmpeg MP4 Output-Extend RDP Session Timeout via Registry

Updated 2026-06-13 13:43:31security-tools

MySQL Connection Refused on Port 3306: Causes and Fixes - Resolve Audio Sync Issues in FFmpeg MP4 Output-Extend RDP Session Timeout via Registry

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.