A company operates an application on Amazon EC2 instances within a VPC. A network engineer replaces self-managed NAT instances with a NAT gateway. After redirecting traffic from the self-managed NAT instances to the NAT gateway, users report connectivity issues. Upon investigation, the network engineer finds that connections to the application are timing out after about 6 minutes of inactivity. What steps should the network engineer take to address this problem? | AWS Certified Advanced Networking - Specialty Quiz