406 error on wordpress site when I post:-Not Acceptable

I have a wordpress personal blog and sometimes I blog there.
Today when I was trying to give a post, I found following problem :(


Not Acceptable
An appropriate representation of the requested resource /wp-admin/post.php could not be found on this server.

What am I supposed to do ? How I solve this 406 error coming whenever I post on wordpress. I can't post now :(

It is not a big problem, may be your host has just configured mod_security (A apache module which act as security or firewall for apache webserver) .

To fix it simply open your .htaccess and add following in it..

Code:

---

<IfModule mod_security.c>
SecFilterEngine Off
</IfModule>

---

It will turn off mod_security for that site