Error :
You might come across the following error in the apache error logs :
mod_security: Access denied with code 403. Error reading request body, error code 70007:
The timeout specified has expired
Fix :
1. Open the Apache configuration file.
root@server1 [~]#vi /usr/local/apache/conf/httpd.conf
2. Change the Timeout value to 300
# Defined in /var/cpanel/cpanel.config: apache_port
Listen 0.0.0.0:80
Timeout 300
User nobody
Group nobody
3. Restart Apache.
root@server1 [~]# /etc/init.d/httpd restart
This should fix the issue.