I logged in to check. You had entered the IP address of the WordPress host. Instead, you should have used the IP address of the host where you have installed the Lightning Terminal. Additionally, the IP address is a v4 address, so I removed the square brackets. Square brackets are for v6 addresses.
I am confused. You say that you are not using Linux. How did you follow the installation instructions then? Where have you installed the Lightning Terminal? The installation instructions require you to install the Lightning Terminal on a Linux host. Please clarify.