One fine day my WD MBL stopped showing up on network, on further investigation found out that I could not ping it nor ssh it.
First I thought that the IP must have changed, after checking out the router configurations found it wasn't in the network.
I rebooted it lot of times, tried the reset option using a pin, but no luck.
The devices boots up with the blue LED and turns to yellow LED and never changes..
P.S: I had recently upgraded the twonky server 7, though I don't think this might be causing any boot issues, but just a FYI.