I am trying to get the www version of my domain to be used, and only the www.

The site is http://www.john-irving.net/

Here is the code I usually use in my .htaccess on my static sites to force the WWW version...

Options +FollowSymLinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} !^/robots\.txt$
RewriteCond %{HTTP_HOST} !^www\.domain\.com [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301,L]

This next bit is what is currently in my .htacces file for my blog. (The commented lines are what wordpress created.)

Options +FollowSymLinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} !^/robots\.txt$
RewriteCond %{HTTP_HOST} !^www\.john-irving\.net [NC]
RewriteRule ^(.*)$ http://www.john-irving.net/$1 [R=301,L] 



# RewriteEngine On
# RewriteBase /
# RewriteCond %{REQUEST_FILENAME} !-f
# RewriteCond %{REQUEST_FILENAME} !-d
# RewriteRule . /index.php [L]

If you visit my site you will see that it is somehow in an infinite loop moving from the www to non www versions.

Is there a problem with my .htaccess or is this an issue with hosting setup? How do you think I could fix this? Thanks, John

If you just let Wordpress write the htaccess file you should be good. Comment out the other stuff (robots etc) and see what happens.

That is how I have it now, but as you can see it is displaying the non WWW version and only the non WWW version. (Even if you type in www.john-irving.net it redirects to the non www)

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Really? Wow, this spam problem needs some fixing.

If you need to work your site with WWW also then please make sure that you have added CNAME record for www in your DNS editor zone.