Have a look at this page on the wiki which should help:
Have you got the weapons out of the satchel first? (right click it)
Then after speaking with him again you should be able to fight him, then speak again to advance the quest.
[SIZE=3][b]Leader of [COLOR="#FFD700"]The Rangers of Eriador[/COLOR], Snowbourn[/b][/SIZE]
[color=#00BF00]Brya, Balthelion, Fyore, Iarngard, Madic, Eoradain, Trystana, Pendalas, Kharmul, Arkunir, Holibrand, Tifridh, Freawyn, Adlanniel, Tiraniel, Lilija, Theda[/color]
[URL="http://www.youtube.com/playlist?list=PL0szyANQhriMn42fCDdke1EMAOcdzmr9v"]Let's Play LOTRO (YouTube Series)[/URL] ~ [URL="https://www.lotro.com/forums/showthread.php?461498-The-Rangers-of-Eriador"]Kin Info/Recruitment[/URL]