Hello I have several (>40) linux servers and which use winbind for authentication (ads backend). Some of them (6) are behind a load balancer (Big-IP) which acts as an ordinary router at the moment. When I try to logon to one of these servers with my ads account I get "permission denied". But if I try it again then it works without problems. As soon as there is no "winbind activity" (no user is loged on to the servers) for some hours it starts again. The winbind logfile says: (...) write_socket: Error writing 270 bytes to socket 18: ERRNO = Connection reset by peer [2009/01/29 02:14:33, 0] libsmb/clientgen.c:cli_send_smb(189) Error writing 270 bytes to client. -1 (Connection reset by peer) [2009/01/29 02:14:33, 0] rpc_client/cli_pipe.c:rpc_api_pipe(790) rpc_api_pipe: Remote machine MYDC pipe \lsarpc fnum 0xc00freturned critical error. Error was Write error: Connection reset by peer [2009/01/29 02:14:33, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(519) (...) As far as I know the load balancer sends a reset package after some hours if there was no activity. Is there a keepalive function for this? I think the keepalive paramter is only for sessions to the clients and not for sessions to the domain controller. Regards Urs