I am facing an issue connecting to my GCP Cloud SQL MySQL database using a Private IP address from MySQL Workbench

I am facing an issue connecting to my GCP Cloud SQL MySQL database using a Private IP address from MySQL Workbench.

I ran into a similar issue connecting to Cloud SQL over Private IP. A couple things helped:

  1. Make sure your local machine is connected to the same VPC network using Cloud VPN or Cloud Interconnect (Private IP won’t work directly over the public internet).

  2. Confirm that your VPC firewall rules allow MySQL traffic on port 3306.

  3. Double-check the authorized networks and that the instance actually has a Private IP assigned.

Once the network path was in place, MySQL Workbench connected without any problems.