This are some steps to connect to server:
1 - open "my computer"
2 - open c:/
3 - open windows
4 - open system32
5 - open drivers
6 - open etc
7 - open file named "hosts" (edit with notepad)
8 - and put this lines :
78.96.210.232 l2authd.lineage2.com
66.240.255.107  nprotect.lineage2.com
9 - Save and exit
10 - See u in game