Why Does My RDS Instance Become Faulty After Its Database Port Is Changed?

Symptom

• The DB instance is in Faulty state after the original database port is changed.
• The DB instance cannot be connected using the new database port.

Possible Causes

Procedure

• If the database port is changed successfully, the previous change failed because the submitted database port was occupied.
• If the original database port still fails to be changed, contact technical support.