Cause: The WiFi signal of the user terminal keeps disconnecting and reconnecting, and it is found that the signal of the AP has disappeared. There is no problem after checking the configuration, but later it is found that restarting can restore the use of the AP, but such problems will still occur after a period of time , because the AP does not have a spare replacement for maintenance, this AP affects the user to drift on other APs, so it needs to be restarted for a few days, and then it is necessary to query the management address of the AP, and directly open the remote restart AP. (The APs belonging to this department are used up and there is no backup, but the management AP is completely managed independently, so I can only try to borrow from the person in charge of wireless management at the network department, but it is not clear what the situation is)
The WiFi I use is not an AP at the user site, but a home router, just for demonstration purposes
1. First confirm whether the WiFi can be connected (if it is an AP on the ceiling of the hall, then some special means are required to check)
2. If it is connected, check the IP address of the terminal immediately (turn on the WiFi in the settings, or download a wireless magic box "WiFi Magic Box")
3. On the AC, check which AP the terminal's IP address is under
4. After checking, check the management address of the AP (you can see that the IP address of this AP is 172.17.188.110)
5. Next, try to log in remotely (Telnet) to check whether the AP can log in remotely. If not, just enable remote login.
(1) If this happens, it means that the AP cannot log in remotely
(2) The console port cannot be logged in
(3) Enter the probe mode and enable remote login for all APs
6. After telnet remote, restart the AP
(Usually, the name of the AP should be written on the AP shell, and the name in the AP configuration should also be modified to facilitate positioning. The one I encountered happened to have nothing written, because it is powered by POE, and the network cable of the switch is not positioned)
所需要的一些基本命令
dis wlan client | include 172.17.132.193
display wlan client或者display wlan client ap all
查看所有AP下的终端IP地址和mac地址信息
display wlan client ap AP-1
查看AP-1这一个AP下的终端IP地址和mac地址信息
display wlan client mac-address 1234-1234-1234
查看这个mac地址的终端连接着那一台AP
display wlan client mac-address 1234-1234-1234 verbose
查看这个mac地址的终端连接着那一台AP以及详细信息（终端的ip、mac和ap的名字、SSID、所属VLAN、信道等配置信息）
display wlan client | include 192.168.1.1
查看这个IP地址终端属于那一台AP
display wlan client | include 1234-1234-1234
查看这个mac地址终端属于那一台AP
display wlan ap all
查看所有AP
display wlan ap all address
查看所有AP的IP地址