I Can't Get Into My Joomla Admin Panel. What Do I Do?
Maybe you've just tested your site, or it has recently been attacked from a computer in your internet provider's network, where the attacker had your actual IP address. Now you can't access your site for exactly that time period you configured as the time window.
In that case please disconnect your computer from the internet and open a new connection. Your internet provider will then assign your computer to another IP address and you can access your admin panel again.