We tried to connect Cisco Aironet 1815<220.127.116.11>, but some android device (Android OS 9) <not all Android device> is unable to connect to the AP.
The SSID is not broadcast setting.
Do you have any idea to solve this issue?
If not, we will update firmware from 18.104.22.168 to 22.214.171.124
We will wait for some advise
Yesterday, I update the firmware from 126.96.36.199 to 188.8.131.52, but this issue is not solved.
So I check the spec of the android device which is able to connect to AP.
I found that the device only support 2.4 GHz.
After that I create new SSID with the Wireless Policy setting as 2.4 GHz only.
Then, I confirmed that the device is able to connect to the AP with new SSID.
I guess that the function of dual band client is not good work.
Do you have any idea or comments?