Raspberry pi Can'；t连接到iot.west.amazonaws.com

我正在尝试在我的raspberry pi上设置IoT AWS，当我尝试描述我的证书时，它说它无法到达端点URL IoT.west.amazonaws.com。我可以ping amazonaws.com，这是实际的域名。我曾尝试将我的DNS改为谷歌的公共DNS（8.8.8.8），但仍然没有成功。我做错什么了吗？

AWS物联网的官员是：

Region          Endpoint
us-east-2       iot.us-east-2.amazonaws.com
us-east-1       iot.us-east-1.amazonaws.com
us-west-2       iot.us-west-2.amazonaws.com
ap-southeast-1  iot.ap-southeast-1.amazonaws.com
ap-southeast-2  iot.ap-southeast-2.amazonaws.com
ap-northeast-1  iot.ap-northeast-1.amazonaws.com
ap-northeast-2  iot.ap-northeast-2.amazonaws.com
eu-central-1    iot.eu-central-1.amazonaws.com
eu-west-1       iot.eu-west-1.amazonaws.com
eu-west-2       iot.eu-west-2.amazonaws.com
cn-north-1      iot.cn-north-1.amazonaws.com

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你确定那是一个有效的地址吗？格式通常为service.region.amazonaws.com。“西部”不是一个区域。尝试：