无线认证问题

portal服务器：域控

DHCP服务器：设置租期过期时间为72小时

AC设置闲置过期时间；20小时

PORTAL 认证列表会出现统一个设备两次在线认证信息，AC配置如下：

wlan service-template hcfasz_office ssid hcfasz.office vlan 24 client forwarding-location ap vlan 24 to 26 user-isolation enable portal enable method direct portal domain ldap.hcfa portal apply web-server hcfa.ldap service-template enable # ldap server hcfa.ldap login-dn cn=service.ac,ou=04service,ou=02users,ou=01hcfasz.local,dc=hcfasz,dc=local search-base-dn ou=02employee,ou=02users,ou=01hcfasz.local,dc=hcfasz,dc=local ip 172.24.102.11 login-password cipher $c$3$J2oFbcSfqaxauuja5+vH9wTPymqIJP1txDqg # ldap scheme hcfa.ldap authentication-server hcfa.ldap # domain ldap.hcfa authorization-attribute idle-cut 1200 10240 authentication portal ldap-scheme hcfa.ldap authorization portal none accounting portal none # portal free-rule 1 destination ip any udp 53 portal free-rule 2 destination ip any tcp 53 portal free-rule 3 destination ip 172.24.22.0 255.255.255.0 portal free-rule 4 destination ip 172.24.102.12 255.255.255.255 portal free-rule 5 destination ip 172.24.103.12 255.255.255.255 # portal web-server hcfa.ldap url http://172.24.22.251/portal # portal local-web-server http default-logon-page defaultfile.zip

请大神帮忙看看什么原因