command line interface - AWS CLI: Error when trying to retrieve console output of an Amazon EC2 instance -

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when retrieving console output instance command:

aws ec2 --region us-east-1b get-console-output --instance-id my_instance_id

i got following error:

httpsconnectionpool(host='ec2.us-east-1b.amazonaws.com', port=443): max retries exceeded url: / (caused <class 'socket.gaierror'>: [errno 11004] getaddr info failed).

when configure 'aws', ensure region name given correctly.

c:\>aws configure aws access key id [****************offq]:  aws secret access key [****************axen]:  default region name [none]: us-east-1b default output format [none]:

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