WA2610H胖AP在使用过程中会发生集体瘫痪问题

WA2610H面板AP，胖模式长期使用几年一直没有问题，最近会出现设备类似死机现象。

出现在每天晚上18-22点，周六七全天，每天一次，偶尔会隔一天。出现状态Console口连接没响应，本机固定管理地址无法PING通，SSID看得到但是无法连通，重启交换机端口供电AP恢复正常，全网大约有100台设备，其中80台2610H会出现问题（同时间一起死机），20台2610H-GN一直正常没有故障，请教有没有遇到过类似情况的，有办法解决吗？已经尝试升级最新版本还是不行

AP配置（版本已经升级最新）================================

 version 5.20, Release 1509P01

#

 sysname WA2610H

#

 domain default enable system

#

 telnet server enable

#

 port-security enable

#

 password-recovery enable

#

vlan 1

#

vlan 3

#

vlan 1001

#

domain system

 access-limit disable

 state active

 idle-cut disable

 self-service-url disable

#

user-group system

 group-attribute allow-guest

#

local-user admin

 password cipher $c$3$e7QqlYwxGMvylJ9Q/gpoDCMpBNHyTWuJF53xFJI=

 authorization-attribute level 3

 service-type telnet

local-user jjinn

 password cipher $c$3$FKQRF9HpjrkjuvhIhxlupsp8GGmvU73DojXSjdhMJrC/Ghi/

 authorization-attribute level 3

 service-type telnet terminal

 service-type web

#

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 crypto

 ssid HOUSE

 cipher-suite tkip

 cipher-suite ccmp

 security-ie rsn

 security-ie wpa

 service-template enable

#

cwmp

 undo cwmp enable

#

interface NULL0

#

interface Vlan-interface1

 ip address 192.168.0.50 255.255.255.0

#

interface Vlan-interface1001

 ip address dhcp-alloc client-identifier mac Vlan-interface1001

#

interface Ethernet1/0/1

 port link-type trunk

 port trunk permit vlan all

#

interface Ethernet1/0/2

#

interface Ethernet1/0/3

#

interface WLAN-BSS30

 port access vlan 3

 port-security port-mode psk

 port-security tx-key-type 11key

 port-security preshared-key pass-phrase cipher $c$3$KRSCH42sngO8x7XQnj5yxXJ+5X8O09Rvsyz4vEM=

#

interface WLAN-BSS32

 port access vlan 3

 port-security port-mode psk

 port-security tx-key-type 11key

 port-security preshared-key pass-phrase cipher $c$3$KRSCH42sngO8x7XQnj5yxXJ+5X8O09Rvsyz4vEM=

#

interface WLAN-Radio1/0/1

 service-template 1 interface wlan-bss 30

#

 arp-snooping enable

#

 load xml-configuration

#

 load tr069-configuration

#

user-interface con 0

user-interface vty 0 4

 authentication-mode scheme

#

return

交换机AP接口（VLAN1001管理地址，VLAN100有线接口用，V3无线用户）============================

interface Ethernet0/0/2

 port link-type trunk

 port trunk pvid vlan 100

 port trunk allow-pass vlan 3 100 1001