CDN CNAME Won't Update

Hello,

I have maxcdn and latest wordpress and w3tc.

When I try to update “Replace site’s hostname with:” my custom domain names they do not update. It refreshes to my website and upon returning to the dashboard it errors with “A configuration issue prevents CDN from working: You need to select / create a pull zone. Specify it here.”

I’m trying to use CDN for pipelining. I know the CDN is working because I see it in page source, however it is the temporary / long URL from maxcdn.

No other values will update and it reverts to this long URL and removes other CNAME entries upon any update.

Note also I have cloudlfare on and hosting is namecheap. I have read that all of these play nice together, but for completeness include the info.

Thank you very much!

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