WA1208E-gp和wa2610e-gnp终端最大速率只有20M，是什么原因（已刷成FAT模式）

这两款AP刷成FAT版本后，怎么测速率只能在20M以内，不知道什么原因，这里还有wa2620的设备速率正常。请帮忙解答一下。附配配置文件。

<WA1208E-GP>dis cu

#

 version 5.20, Release 1112P15

#

 sysname WA1208E-GP

#

 domain default enable system

#

 telnet server enable

#

 port-security enable

#

vlan 1

#

domain system

 access-limit disable

 state active

 idle-cut disable

 self-service-url disable

#

user-group system

#

local-user admin

 password simple h3capadmin

 authorization-attribute level 3

 service-type telnet

#

wlan rrm

 dot11b mandatory-rate 1 2

 dot11b supported-rate 5.5 11

 dot11g mandatory-rate 1 2 5.5 11

 dot11g supported-rate 6 9 12 18 24 36 48 54

#

wlan service-template 1 clear

 ssid H3C

#

wlan service-template 2 crypto

 ssid IBIS

 cipher-suite tkip

 security-ie rsn

 service-template enable

#

interface NULL0

#

interface Vlan-interface1

 ip address 172.31.15.225 255.255.252.0

#

interface Ethernet1/0/1

#

interface WLAN-BSS32

 port link-type hybrid

 port hybrid vlan 1 untagged

#

interface WLAN-BSS33

 port link-type hybrid

 port hybrid vlan 1 untagged

 port-security port-mode psk

 port-security tx-key-type 11key

 port-security preshared-key pass-phrase cipher dnZlEhXel8QR9IWFgUgXQQ==

#

interface WLAN-Radio1/0/1

 channel 6

 service-template 1 interface wlan-bss 32

 service-template 2 interface wlan-bss 33

#

 arp-snooping enable

#

 load xml-configuration

#

user-interface con 0

user-interface vty 0 4

 authentication-mode scheme

#

return