Help Center > > FAQs> Database Connection> What Can I Do If the Connection Test Failed?

What Can I Do If the Connection Test Failed?

Updated at: Jun 09, 2021 GMT+08:00

Fault Location

  1. Check security group rules.
  2. Check network ACLs.
  3. Check the NIC information of ECSs.
  4. Check the disconnected ports.


  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Click in the upper left corner of the page and choose Database > Relational Database Service. The RDS console is displayed.
  4. On the Instance Management page, click the target DB instance. In the Connection Information area on the Basic Information page, view the VPC where the RDS DB instance is located.
  5. Check whether the RDS DB instance to which distributed transactions are added is in the same VPC as ECS.

Did you find this page helpful?

Submit successfully!

Thank you for your feedback. Your feedback helps make our documentation better.

Failed to submit the feedback. Please try again later.

Which of the following issues have you encountered?

Please complete at least one feedback item.

Content most length 200 character

Content is empty.

OK Cancel