I have an older version of Lucera 3, where the number of players (20) is limited when the license is not active
https://mega.nz/#!XMIUhZBR!cc6Rg34A8b4hMu1-hNcjGco6EhZrJKK7wl8fGOX55ng
Lacks many fixes, but if someone makes it available is gg
I played on a server these days.
I had some experiences with some friends with your protection, I believe (https://l2free.org/)
in cases some people can not log in to the server, even changing the system or downloading a new client... Gm did not know how to solve the problem ...
and some friends using adrenaline.exe edited to use adr (although this applies to smartguard as well).