MicroBerto on "[Plugin: W3 Total Cache] CloudFlare API: Setting: async Couldn't resolve host 'www.cloudflare.com'."

Anyone know why this error might be happening on my VPS when I try to configure CloudFlare?

Unable to communicate with CloudFlare API: Setting: async Couldn't resolve host 'www.cloudflare.com'.

Happening on multiple sites from this server. Maybe it's the VPS.

Thanks,
Mike

http://wordpress.org/extend/plugins/w3-total-cache/