I have a user in AWS having Full admin access but still when I try to describe my EC2 instances or List S3 buckets, I get an Access denied error message - examples below. Any help will be greatly appreciated.
aws s3 ls
An error occurred (AccessDenied) when calling the ListBuckets operation: Access Denied
aws ec2 describe-instances --region eu-west-2
An error occurred (UnauthorizedOperation) when calling the DescribeInstances operation: You are not authorized to perform this operation.