We are running a ZD 1100 with 9.10.2 Build 29 firmware and 7762 and 7363 APs. After upgrading iOS devices from 10.x to 11 these devices cannot connect to the WLAN. We are using pre shared Keys and WPA2. Even if we try to use the guest WLAN a connection ist not possible. What can we do resolve this issue?
I have updated the firmware last friday to 188.8.131.52 build 121 and it looks like the issues are gone. People with an IOS 11 device that could not connect before are not able to open the guestnetwork and enter their guess password.