Hello, I'm having the following issue. My network have about 15 AD domain controllers. When ext_kerberos_ldap_group_acl is used, according to the help page, it operates doing: " ext_kerberos_ldap_group_acl will determine automagically the right ldap server. The following method is used: 1) For user <at> REALM a) Query DNS for SRV record _ldap._tcp.REALM b) Query DNS for A record REALM c) Use LDAP_URL if given 2) For user a) Use domain -D REALM and follow step 1) b) Use LDAP_URL if given " When a WAN link fails and, let's say, half of the AD DCs goes offline, the helper gives me a lot of errors like "kerberos_ldap_group: ERROR: Error while binding to ldap server with SASL/GSSAPI: Can't contact LDAP server". CPU usage goes to the top and things get ugly. How can I avoid this? If I set some LDAP servers with "-S", and half of them goes offline, the same behaviour will happen? If I set the two DCs most reliable, they will be used instead of the DNS's discovery process? thanks, Carlos