I'm trying set up W3 Total Cache's CDN support with Amazon CloudFront but I'm getting an error message "Error: Unable to list buckets ()." when I try to test the configuration.
I've searched for anyone else reporting similar problems and I have checked the timezone for the server (GMT using phpinfo) and in WordPress it is set to London. The time is correctly set, I checked that via a phpinfo() and checking _SERVER["REQUEST_TIME"].
cURL support is enabled, again checked via phpinfo()
And I created the first CloudFront bucket on Amazon's AWS Management Console, as suggested in another post.
I know that it's connecting to Amazon because I tried setting an incorrect Access key ID and Secret key and it gave appropriate error messages, so it's not an authentication issue.
Finally, I tried changing the CDN type to Amazon S3, I created a Bucket using AWS management Console and that appears to work fine, "Test passed" when I clicked "Test S3 Upload" button. I've not actually published any content to the new S3 bucket as I'd rather use CloudFront.
Any other suggestions on configuring the CDN using CloudFront?