Hi! Since we migrated to Fedora Core 3 our Linux box where we run Squid, wich, in turn, uses Samba?s winbind to do ntlm authentication, we are experiencing a weird behavior in this authentication, wich I think relates to winbind. We are running samba-3.0.8-0.pre1.3, and Squid is randomly displaying an authentication windows to the user. Reading the winbindd.log, I have found the following messages: cli_nt_session_open: cli_nt_create failed on pipe \NETLOGON to machine <OUR SERVER>. Error was NT_STATUS_PIPE_NOT_AVAILABLE cli_nt_create failed to \PIPE\NETLOGON machine <OUR SERVER>. Error was NT_STATUS_PIPE_NOT_AVAILABLE I have tested wbinfo -t, wbinfo -a user%password, wbinfo -u, wbinfo -g, and it all worked ok. Does anybody know what may be going wrong? Thanks in Advance, Carlos.