AP频繁掉线

1台7500E，插板卡AC，

管理31台AP，

AP频繁掉线。

日志片段如下：

%Apr 16 13:19:09:385 2019 HuiSuo_AC PORTSEC/5/PORTSEC_VIOLATION: -IfName=WLAN-DBSS0:12-MACAddr=90:E1:7B:D5:9F:D0-VlanId=-10-IfStatus=Up; Intrusion detected. 

<HuiSuo_AC> 

%Apr 16 13:19:17:178 2019 HuiSuo_AC LWPS/6/LWPS_AP_DOWN: 

 Connection with AP 586a-b132-ea20 goes down by reason of Response Timer Expire. %Apr 16 13:19:17:185 2019 HuiSuo_AC IFNET/3/LINK_UPDOWN: WLAN-DBSS0:12 link status is DOWN. 

%Apr 16 13:19:17:185 2019 HuiSuo_AC IFNET/3/LINK_UPDOWN: WLAN-DBSS0:13 link status is DOWN. 

%Apr 16 13:19:17:185 2019 HuiSuo_AC IFNET/3/LINK_UPDOWN: WLAN-DBSS2:14 link status is DOWN. 

%Apr 16 13:19:19:706 2019 HuiSuo_AC LWPS/6/LWPS_AP_UP: Connection with AP 586a-b132-ea20 goes operational. 

%Apr 16 13:19:19:707 2019 HuiSuo_AC IFNET/3/LINK_UPDOWN: WLAN-DBSS0:144 link status is UP. 

%Apr 16 13:19:19:726 2019 HuiSuo_AC IFNET/3/LINK_UPDOWN: WLAN-DBSS0:145 link status is UP.

 %Apr 16 13:19:19:743 2019 HuiSuo_AC IFNET/3/LINK_UPDOWN: WLAN-DBSS2:146 link status is UP.

请教高人，这是怎么个原因，需要如何调整？

1台7500E，插板卡AC，

管理31台AP，WA2600i-AGN