After days of tests it seems it's a kerberos tickets forwarding problem, smbclient replying with an spnego error claiming a lack of information from kerberos.
The group resolving problem looks like an issue with ticket forwarding (forwardable and forward true in appdefaults): the filer requires login/pass.
downgrading smbclient does not fix the problem.
There was no problem with this filer when i used a ubuntu 9 workstation and kerberos/likewise.
After days of tests it seems it's a kerberos tickets forwarding problem, smbclient replying with an spnego error claiming a lack of information from kerberos.
The group resolving problem looks like an issue with ticket forwarding (forwardable and forward true in appdefaults): the filer requires login/pass.
downgrading smbclient does not fix the problem.
There was no problem with this filer when i used a ubuntu 9 workstation and kerberos/likewise.