Page Cache not working with wordpres 4.2.1

Plugin Version: 0.9.4.1
PHP Version: 5.4.34;
Web Server: Apache
FTP functions: Installed (required for Self-hosted (FTP) CDN support)
Multibyte String support: Installed (required for Rackspace Cloud Files support)
cURL extension: Installed (required for Amazon S3, Amazon CloudFront, Rackspace CloudFiles support)
zlib extension: Installed (required for compression support)
Opcode cache: Not installed
Memcache extension: Not installed
HTML Tidy extension: Installed (required for HTML Tidy minifier suppport)
Mime type detection: Not installed (required for CDN support)
Hash function: Installed (hash) (required for NetDNA / MaxCDN CDN purge support)
Safe mode: Off
Open basedir: Off
zlib output compression: Off
set_time_limit: Available
mod_deflate: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_env: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_expires: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_headers: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_mime: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_rewrite: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_setenvif: Not detected (required for disk enhanced Page Cache and Browser Cache)
Additional Server Modules

New Relic
PHP version: Supported
Operating System: Supported
Web Server: Supported
WordPress Resources

/home/xxxxxxxxxx/public_html/.htaccess: OK
/home/xxxxxxxxxx/public_html/wp-content: OK
/home/xxxxxxxxxx/public_html/wp-content/uploads/2015/04: OK
Fancy permalinks: /%post_id%/%postname%
WP_CACHE define: Defined (true)
URL rewrite: Enabled
Network mode: No

Direct the url is ok
eg:
domain.com/wp-content/uploads/2014/11/logo.png is OK
cdn1.domain.com/wp-content/uploads/2014/11/logo.png (404 Not Found “The server can not find the requested page:”)

<!– W3 Total Cache: Page cache debug info:
Engine: disk: enhanced
Cache key: http://www.domain.com/_index.html
Caching: enabled
Creation Time: 0.009s
Header info:
Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT
Expires: Thu, 30 Apr 2015 08:50:42 GMT
Pragma: public
Cache-Control: max-age=7200, public
X-Powered-By: W3 Total Cache/0.9.4.1
–>