when 'DNS Server Order:' is set to 'Manual,DHCP' and 'Primary DNS:' is filled with an IP address
and the primary DNS does not reply/work the LDAP lookup fails, it does not try to contact the LDAP server (when using a hostname, when using an IP address it works fine)
the registration to the PBX at hostname level work as expected.
possibly more models are affected, but wasted half my morning with this device already.
