No matter what instance name I choose, whenever I perform the following on an on prem instance:

```
aws deploy register --instance-name test --tags "Key=Name,Value=test" --region us-west-2 --debug

```

The following exception is thrown (always):

```
2016-04-12 11:02:52,625 - MainThread - awscli.errorhandler - DEBUG - HTTP Response Code: 400
ERROR
A client error (InvalidIamUserArnException) occurred when calling the RegisterOnPremisesInstance operation: Iam User ARN
 arn:aws:iam::xxx:user/AWS/CodeDeploy/test is not in a valid format
Register the on-premises instance by following the instructions in "Configure Existing On-Premises Instances by Using AWS CodeDeploy" in the AWS CodeDeploy User Guide.

```

Despite this error, the user gets created on amazon, and I can continue to register the on prem instance with the following:

```
aws deploy register-on-premises-instance --instance-name test --iam-user-arn arn:aws:iam::xxx:user/test
aws deploy install --override-config --config-file codedeploy.onpremises.yml --region us-west-2 --agent-installer s3://aws-codedeploy-us-west-2/latest/codedeploy-agent.msi

```

The instance is registered and the user is created, but when deploying to it, I always get "No hosts succeeded". The logs for the codedeploy agent show no errors. 

I am not sure whats happening here either since no logs on either end, in codedeploy console or on the on prem machine codedeploy agent. Any ideas?

Please note I am using Windows Embedded Standard 2010 (which is not in the supported list) with the latest version of aws cli but I have successfully deployed to it in the past (with previous version of aws cli).