Hi everyone, I have a gentoo server running samba, winbindd, squid and apache as my main proxy server. I have had it authenticating 100% for a few weeks now. Recently I can no longer join my server to the domain again using the command "net rpc join -U username%password -S PDC". The follwing message is displayed. [2009/07/31 15:46:10, 0] utils/net_rpc_join.c:net_rpc_join_ok(81) net_rpc_join_ok: failed to get schannel session key from server PDC for domain DOMAINNAME. Error was NT_STATUS_ACCESS_DENIED Unable to join domain DOMAINNAME. I opened up my /var/log/samba/lob.wb-DOMAINNAME logfile. below is the result: [2009/07/31 15:46:16, 0] libsmb/credentials.c:creds_client_check(324) creds_client_check: credentials check failed. [2009/07/31 15:46:16, 0] rpc_client/cli_netlogon.c:rpccli_netlogon_sam_network_$ rpccli_netlogon_sam_network_logon: credentials chain check failed The strange thing is: - According to AD in 2003, the machine has joined (I deleted beforehand). - I can perform authentication using wbinfo -a -u and -g. It shows all information. One might say that it is working fine.. but I am rather concerned about the error above. - If I create a new machine account from AD and assign the computer as a pre-2000 computer, the "net rpc join" command works perfectly. However, because there is no encryption happening between the computer account, authentication failes with winbindd. What could be causing this error? I thought it might be a microsoft security update.. I am certain I have not changed any of my configs. I thought I would ask in here first. Any help would be appreciated! Thanks, Paul