Hi, I have a samba domain with over 100 machines in it. For some reason every 30-35 days, 2 of the machines fail the trust relationship at login and need to be removed from the domain and rejoined. In the logs I see the following: [2012/08/21 07:55:52.981302, 0] rpc_server/netlogon/srv_netlog_nt.c:976(_netr_ServerAuthenticate3) _netr_ServerAuthenticate3: netlogon_creds_server_check failed. Rejecting auth request from client RED-TEAM machine account RED-TEAM$ I am running samba 3.6.6 on a Centos-5 machine. Does anyone have any suggestions on what could cause this or how to troubleshoot this problem? Regards, -- Tom Diehl tdiehl at tntechs.com SpamTrap Address mtd123 at tntechs.com 215-741-3813 Please note: Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues.