![]() ![]() Confirm that the subnets associated with each DB instance are associated with the same or similar route tables. Your Amazon VPC subnet's route table must allow traffic from your machine or instance. Check if your network allows traffic to and from the ports that the DB instance uses for inbound and outbound communication.Īmazon VPC subnet route tables don't allow traffic If you use Network ACLs in your VPC, then be sure that they have rules that allow inbound and outbound traffic to and from the DB instance. You can specify an IP address, a range of IP addresses, or another VPC security group. If necessary, add rules to the security group associated with the VPC that allows traffic related to the source in and out of the DB instance. Amazon Virtual Private Cloud (Amazon VPC) security groups associated with the DB instance.Be sure that traffic from the source that connects to your DB instance isn't blocked by one or more of the following: Your instance must have access to the cluster in your network access control lists (ACLs), local firewalls, and security group rules. The source doesn't have authorized access to the clusterĬonfirm that the source that you use to connect to the instance is authorized to access the cluster. For more information, see Monitor an Amazon DocumentDB cluster's status and Monitor an Amazon DocumentDB instance's status. If your instances aren't in available states, then they can't accept connections. DB instance isn't in the available stateĬheck that your Amazon DocumentDB cluster has at least one instance and cluster in an available state. Use the following steps to troubleshoot the most common root causes. There are a number of reasons you might experience issues when you try to connect to an Amazon DocumentDB cluster. ![]() Note: If you receive errors when you run AWS Command Line Interface (AWS CLI) commands, then make sure that you use the most recent AWS CLI version. But if you need to access your Amazon DocumentDB cluster from outside of the AWS network, then use SSH tunneling or AWS Client VPN. To connect, you must use an Amazon Elastic Compute Cloud (Amazon EC2) instance or another AWS service in same VPC as your instance.īut you can use VPC peering or Transit Gateway to access Amazon DocumentDB from EC2 instances or other AWS services in different VPCs or Regions. Amazon DocumentDB is a virtual private cloud (VPC) only service, and doesn't support the use of public endpoints.
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