Are you sure the Yamaha can access the SMB server? The 477 and 577 are both DLNA devices, as far as I can tell from the manual.
As for your SSH, as Bennor said; get searching the forum. This thread might give you some pointers:
Are you sure the Yamaha can access the SMB server? The 477 and 577 are both DLNA devices, as far as I can tell from the manual.
As for your SSH, as Bennor said; get searching the forum. This thread might give you some pointers: