I have a Western Digital World Book that comes with twonky media installed for Itunes streaming. I have the drive connected directly to my Apple Extreme router. I also have Windows 7 on all of my computers. I get the following error when I try to access the Itunes server share from Itunes,"the shared library
<library name> is not responding (-3259) check that any firewall
software running on either the shared computer or this computer has
been set to allow communication on port 3689"
This is real frustrating, as one of the only reasons I got the WD World book was because of the Itunes server.