Hi, We have a small cluster of 4 webservers running iis 7 (windows 2008 64 bit) with an AD domain controller and a samba server. Recently we have had issues where a webserver will randomly lose the network share, the only way to fix this is to restart winbind or samba, When we restart winbind this fixs the problem with the server in question however each of the other web servers servers lose their connectivity in 5 minute intervals, so in actual fact we have to restart winbind 4 times for all servers to be fully functioning again. When the connectivity is lost (and before i restart winbind/samba) , i can still run wbinfo -u on the samba server and it will authenticate fine however the user won't have access to their home directories due to insufficient permissions error, when i check the permissions they have reverted back to the unix uid, if i do a chown with the correct sid the directory is available again... Does anyone have any ideas why this is occuring and whether anything is wrong with my samba.conf ? [global] security = ads syslog = 0 max mux = 16384 log file = /home/sites/samba-log/log.%m max open files = 100000 realm = WEBHOSTING.INTOFFICE.COM <http://webhosting.intoffice.com/> password server = 10.0.9.1 workgroup = WEBHOSTING idmap backend = tdb idmap uid = 500-2000000 idmap gid = 500-2000000 winbind enum users = yes winbind enum groups = yes template homedir = /home/sites/%U template shell = /bin/bash client use spnego = yes client ntlmv2 auth = yes encrypt passwords = yes winbind use default domain = yes winbind nss info = template rfc2307 restrict anonymous = 2 idmap config WEBHOSTING : schema_mode = rfc2307 idmap config WEBHOSTING : backend = ad idmap config WEBHOSTING : range = 500 - 300000000 #to fix smbd moaning about hom not being available... [hom] hide dot files = no path = /home/sites read only = no dos filetime resolution = yes [home] hide dot files = no path = /home/sites read only = no dos filetime resolution = yes Any help greatly appreciated. Thanks, Wasim