您可以参考来自AWS的rel ="nofollow noreferrer">此故障排除文档.此外，如果启用了VPC流日志，则可以跟踪vpc流日志以检查哪个aws资源正在拒绝网络流量.有关VPC流日志信息，请参考

You can refer this troubleshooting document from AWS. Furthermore, If you have enabled VPC Flow Logs, then you can trace vpc flow logs to check, which aws resource is rejecting the network traffic. For VPC flow logs information please refer this document from AWS.