Can´t connect - Green and yellow lights on the back of Mybook live 2Tb

Hallo.

Suddently i can´t connect to my Mybook Live and the drive don´t show up on my mac.

On the back of my Mybook live, there is a green flashing some times and there is a yellow light (not flashing)

Im using a Linksys wrt160n router (Just reinstalled it, but no luck)

Anyone???

What about the light on the front? Is it White, blue, yellow, green or red? Did you connect the drive directly to the Ethernet port of your Mac to see if it can get recognized that way?