Disable HTTP Auth
For xcart, zencart, and some others, where you need to install the Teapplix module into the "admin" folder, sometimes people enable http auth or other firewall restrictions to the admin directory.
This will prevent Teapplix from being able to access our module.
To enable HTTP Auth for the module, you need to modify your .htaccess file. Please add the following lines to the end of .htaccess:
Allow from TEAPPLIX_IP1
Allow from TEAPPLIX_IP2
You can contact Teapplix Support to obtain TEAPPLIX_IP1 and TEAPPLIX_IP2 values