Site redirects to root index.php - 403?

I have set up a virtual host for a site where the directory only contains an index.html. The virtual host file in the sites-available directory looks exactly the same as other sites on the same droplet. I have set up A records for both @ and www. My client has pointed to the site using a Cname from their registrar account. It worked until I moved to a new Droplet by installed a snapshot image. When my client changed Cname to the new IP the site started redirecting to the root of my server instead of accessing their directory in the /var/www directory. The logs show a 403 when I try to hit the site. I can access the site using the droplets IP so I suspect it’s a DNS issue rather than a permissions error but don’t really know where to start to trouble shoot this.

The Virtual Host file looks like this:

<VirtualHost *:80> ServerAdmin webmaster@localhost ServerName sitename.com ServerAlias www.sitename.com

DocumentRoot /var/www/sitedirectory
<Directory />
	Options FollowSymLinks
	AllowOverride all
</Directory>
<Directory /var/www/>
	Options Indexes FollowSymLinks MultiViews
	AllowOverride all
	Order allow,deny
	allow from all
</Directory>

ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
<Directory "/usr/lib/cgi-bin">
	AllowOverride all
	Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
	Order allow,deny
	Allow from all
</Directory>

ErrorLog ${APACHE_LOG_DIR}/error.log

# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn

CustomLog ${APACHE_LOG_DIR}/access.log combined

Alias /doc/ "/usr/share/doc/"
<Directory "/usr/share/doc/">
    Options Indexes MultiViews FollowSymLinks
    AllowOverride all
    Order deny,allow
    Deny from all
    Allow from 127.0.0.0/255.0.0.0 ::1/128
</Directory>

</VirtualHost>

The site directory is 755 and I even changed it to 777 to see if that helped, but it didn’t.

This exact set up works with other sites on this droplet. Could this be something to do with the Cname record? They are pointing to the IP of the server and an A record is entered for the domain in the DO DNS.

Here’s the DNS entry:

$TTL 1800 @ IN SOA NS1.GENLACKCLOUD.COM. hostmaster.sitename.com. ( 1386531108 ; last update: 2013-12-08 19:31:48 UTC 3600 ; refresh 900 ; retry 1209600 ; expire 1800 ; ttl ) IN NS NS1.GENLACKCLOUD.COM. NS NS2.GENLACKCLOUD.COM. NS NS3.GENLACKCLOUD.COM. @ IN A 162.243.245.207 www IN A 162.243.245.207

The Droplet is running Ubuntu 12.04

Thanks for any advice anyone may have!