I also connected the LS directly - no ping - nothing.
I reconnected it to the router and then I could ping it again.
After that I downloaded the firmware update from buffalo. I took v1.06!
(I tried to update a linkstation one year ago with the v2.10 and this was a very big mistake... ended in a 2 week nightmare and changing the hardware...)
so I tried the v1.06 and the update process was OK.
I could see the linkstation in my network. I checked the configuration in the browser management ... and the next problem : all in japanese... it took me some minutes to find the right menu to switch it back to german.
Ok everything seems fine... but where are my share folders?
The nas navigator displays : 68% of HD full - but the share folder is empty.
So I rebooted the linkstation and now the red LED flashes 4 times after some minutes - manual says: fan problem.... ?
and of course: no more access to the share folder...
crap.
NEVER UPDATE A LINKSTATION!
I will dismantle it and try to get my data back on a good old usb drive. Maybe I use the linkstation to keep the top cover of my garbage can closed...