If I get my story right (and someone will quickly kick me if I am wrong) ...
Using arrows was deliberately disabled.
This was done because game bots were being used to play the game and level up characters, create mayhem, etc .... basically mucking up gameservers for everyone.
By switching off the arrows, the bots couldn't work any more.
I don't think you're going to get them switched back on again.
My friend is a paranoid schizophrenic ... she'll take over the world, as long as nobody minds.
Not only for bots, also becouse simple players could walk through walls becouse geodata, wich tells server where is wall and where player can't move, doesn't exist.
Is here some new news about waking with buttons w,a,s,d.
Because this old answer about the Bot´s was wrong i can use Bot on L2J server and waking with arrows is disable.
The Bot works fine so xD why can we have it !?
When i stay on a ship i can run with the buttons w & s so is there the Bug or !?