All APs on our campus showing Disconnected on the ZD and there is now WIFI

[mbendaou]

Hello All,

We lost all of the APs on our school campus and there is no wifi, all the APs' LEDs behave the same, PWR and CTL/DIR LEDs are blinking green slowly.

APs are not reachable via ping, and on the ZoneDirector they are all showing Disconnected.

The DHCP server is working well because I unplugged an AP from a switch where it was connected and I was able to get an IP address using a PC on the right VLAN 48.

I couldn't find the reason for this happening until I physically reset an AP and it reassociated itself with the controller and start emitting wifi like a charm. I did this stupid solution for almost 30 AP and they are all the same working fine after the reset, there are still 100 AP, and I found it tedious to continue like this. is there any solution how to reset a disconnected, non-pingable AP? knowing that on the switches I can see some of them as neighbors with the default AP address 192.168.0.1 and some are not showing as LLDP/CDP neighbors even the PWR and CTL are blinking slowly green.

I hope I had explained the issue correctly and please if you had the same experience or you know how to get the rest of the AP connected to the ZD I will be thankful.

Thanks in advance.