You have to be carefull not to enter a space at the end of the API key. That was the reason why the entered API key did not work at my ZD in the first place. Getting a key via https://developers.google.com/maps/documentation/geocoding/get-api-key
I have updated the firmware last friday to 9.13.3.0 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.
We have also issues with connecting wirelesse devices running IOS 11 to our ZD1200. The devices running IOS 10 still working.The firmware version is 9.13.1.0 build 11 and we use R500 AP's.
