Currently Being ModeratedJul 28, 2011 2:57 AM (in response to Charles Conway)
don't fully trust me, but i've read somewhere that 10.6 client's are not longer compatible with 10.7 OpenDirectory.
i guess it has something to do with a "new Kerberos architecture", something they call "endian version".
that's why App Store makes you purchase the Lion CLient with the Server
Maybe there's a hack out there which makes that work, but as far as i know, it's a normal behaviour