It works for me. i did have to select its wifi at first but after that it should automatically connect to the wifi. if you select wifi and it asks for a password, the setup didn't work. I sometimes have the same issues setting up carplay dongles...it will connect Bluetooth but then after a while it doesn't connect to wifi. If you wait a while, select WiFi yourself. Sometimes i reboot sync and other times i unplug and replug the dongle and manually select wifi. Once your iPhone joins and has auto-join set, it should connect automatically thereafter.
Worst case scenario, delete the Bluetooth and wifi profile and profile in the car, and start all over.