Vittorio,
Have u tried this yet --
Go into MPAD on your mobile control device. Open it up. BDP-1 powered up. Wireless router on.
Go to Settings at the top -- the bulls-eye symbol.
Try directly typing in the IP address e.g. 102.72.0.103. Find out what the IP address is for your router -- easily done from your desktop.
I've had to do this a few times way back when, and I have no more issues (I use Loony Loon).
Good luck,
Pete