use this bypass:
and add this to your hosts file if you dont have it already:
127.0.0.1 L2authd.Lineage2.com
216.107.250.194 nprotect.lineage2.com
works for me.
if you didnt disable GG you might have to use this line instead of the first one so you dont get a GG error (old GG server got disabled by NCSoft 2 days ago):
127.0.0.1 L2AuthD.Lineage2.com
i didnt test this line because i disabled GG anyway thats why i didnt get an error message, walker just didnt verify ok.