Those who have freelancer.ini that does not include hostname = gun.fllistserver.com, use Windows search for Freelancer.ini - search for the discovery ones since what I get in PMs in the ones you find in the \Freelancer\EXE directory. - The vanila ones.
You can also search for "Discovery" since again, all I've got in PMs is the vanila freelancer.ini and not the 4.86 generated one.