Aws-cli: CentOS 7.x x64 Unable to grab EC2 Information

[dbiers]

Having an issue now where I cannot run

$ aws ec2 describe-instances

It always results in

A client error (AuthFailure) occurred when calling the DescribeInstanceStatus operation: AWS was not able to validate the provided access credentials

Troubleshooting

CentOS 7.x x64

$ cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

Python Version(s)

$ which python python2 python2.7
/usr/bin/python
/usr/bin/python2
/usr/bin/python2.7

$ python --version ; python2 --version ; python2.7 --version
Python 2.7.5
Python 2.7.5
Python 2.7.5

"pip" and "awscli" PIP Package Versions:

$ pip list | grep "pip\|aws"
awscli (1.10.24)
pip (8.1.1)

Current IAM Security Policy:

{
    "Version": "2016-05-02",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "*",
            "Resource": "*"
        }
    ]
}

Screenshot of working simulation of "describe-instances":

http://i.imgur.com/jglmvbi.png

Contents of /home//.aws/credentials and config:

$ cat .aws/credentials
[default]
aws_access_key_id = <REMOVED>
aws_secret_access_key = <REMOVED>

$ cat .aws/config
[default]
region = us-east-1

Testing with other permissions and commands:

$ aws iam list-access-keys
{
    "AccessKeyMetadata": [
        {
            "UserName": "<REMOVED FOR PRIVACY>",
            "Status": "Active",
            "CreateDate": "2016-05-02T19:16:31Z",
            "AccessKeyId": "<REMOVED FOR PRIVACY>"
        }
    ]
}

But I receive errors when running "describe-instances", "describe-regions", etc.

$ aws ec2 describe-instances

A client error (AuthFailure) occurred when calling the DescribeInstances operation: AWS was not able to validate the provided access credentials

I ran --debug with this as well but it doesn't _seem_ to provide any useful insight, only that Amazon returns back the same error above, only in a more verbose, XML format.

Has anyone any ideas or have run into this before?

[dbiers]

Resolved;

Apparently this can happen if the time is not sync'd and is too far off. In my case, my server was nearly one minute off of sync.

[JoelBCarter]

Hours. You've saved me hours. I can't thank you enough. How did you even figure this out?