@gounthar It's working OK for me, both the FriendlyElec images and ones generated with pyavitz's debian image builder.
Which FriendlyElec image are you using? And which ethernet port? (Reason I ask is I think with FriendlyWRT SSH is firewalled off on the WAN interface)
If it's visible on your router it's presumably made a DHCP request so must be up and running.