How do I troubleshoot Windows EC2 launch issues with a Dedicated Host?

Resolution

Follow the resolution steps for the issue that you're experiencing.

Error "Unable to allocate a dedicated host of type <instance type> in AZ <AZ> due to insufficient resources"

If AWS doesn't have enough On-Demand capacity to complete your request, then you might receive an insufficient resources or InsufficientInstanceCapacity error. To resolve this issue, see Insufficient instance capacity.

Error: "specified ami is not supported in targeted dedicated host type"

This error occurs when the Dedicated Host encounters a limit or restriction. Make sure that you follow the Dedicated Hosts restrictions.

Bring Your Own License (BYOL) issues

Dedicated Hosts let you use your own software licenses that you manage. To use your own software license, see Bring your own license.

Issues with supported instance size configurations on Dedicated Hosts

For information on instance capacity, supported types, and size for Dedicated Hosts, see Dedicated Hosts configuration table. You can also modify the supported instance types for a Dedicated Host.

Use the DescribeHosts API action to see a description of the Dedicated Hosts that you use in your AWS Region.

Related information

How do I migrate a Dedicated Host or Dedicated Instance to another Dedicated Host?