@didoh
The instructions in my previous update are for adding an IP to the iTSec plugin permanent whitelist.
Even though it seems your laptop is configured to use dynamic ip addresses the instructions still might help you to get in and release lockouts or reconfigure the iTSec plugin settings.
The iTSec plugin does have another (temporary) whitelist setting. Which, considering you are using dynamic ip addresses, would probably make more sense to use.
However based on your last post I think we better look for an easier solution.
So ignore my previous instructions and try this instead.
Rename the better-wp-security folder in order to be able to log into WP Dashboard again. Once logged in create a new administrator user.
Logout, rename the folder back to better-wp-security and then login using the new administrator user name.
In the iTSec plugin Dashboard screen click on the blue Temporarily Whitelist my IP button.
Logout and login again using the old (locked out) user name. Because your dynamic ip address has been temporarily whitelisted you will not be locked out for 24 hours.
These instructions basically solve the issue as reported in this topic. But you need to do more in order to prevent this from happening again. It seems your website is leaking user name(s) or they are too easy to guess …
And probably anyone can access your WP Dashboard login page. Hence the user lockouts you are experiencing.
Fix that and you are back in control.
dwinden