Our organization must be able to offer non-domain PC's printing facilities using our domain printserver and since Windows 7 was released, it seems that the Kerberos ticket/printing authentication simply runs out without letting the user re-authenticate as it did on Windows XP. When it happens the domain printers appears to be offline. If authentication is forced (i.e. opening the print share) the printers are again available.
How can I make this work without manual re-authentication?