Execute cmd.exe as an administrator and run
xiloader.exe --server ffxi.madetoraid.com
then select the "Login" option by hitting "1" then:
[01/25/25 19:53:40] ==========================================================
[01/25/25 19:53:40] DarkStar Boot Loader (c) 2015 DarkStar Team
[01/25/25 19:53:40] LandSandBoat Boot Loader (c) 2021-2025 LandSandBoat Team (v1.1.1)
[01/25/25 19:53:40] Git Repo : https://github.com/LandSandBoat/xiloader
[01/25/25 19:53:40] Bug Reports: https://github.com/LandSandBoat/xiloader/issues
[01/25/25 19:53:40] ==========================================================
[01/25/25 19:53:40] Remote server certificate warnings:
[01/25/25 19:53:40] The certificate is not correctly signed by the trusted CA
[01/25/25 19:53:40] ==========================================================
[01/25/25 19:53:40] What would you like to do?
[01/25/25 19:53:40] 1.) Login
[01/25/25 19:53:40] 2.) Create New Account
[01/25/25 19:53:40] 3.) Change Account Password
[01/25/25 19:53:40] ==========================================================
Enter a selection: 1
Username: forumusername
Password: forumpassword