Yes, you can reset the Wifi configuration of Jooki. There are two ways that you can do this.
1. If you have a connection between the app and Jooki:
In the Jooki App you can easily erase the wifi settings ONLY, and keeping all your music and playlists:
power on Jooki
take phone
open Jooki APP
Go the device info
long press on "Wifi section"
read and click yes to erase all wifi info.
Then please reboot Jooki to go back into "setup mode", and connect Jooki to a different network!
2. No connection: "factory reset" of Jooki.
When there is a memory card in your Jooki, the factory reset does not erase playlists and figurines. If there is no memory card in your Jooki, you will lose your music and playlists.
Here's how you do a factory reset:
https://support.jooki.rocks/hc/en-us/articles/115002954072
Beside resetting wifi, a factory reset is also helpfull in other situations. If you'd like to know the other cases where a Jooki factory reset will be help full, click here
https://support.jooki.rocks/hc/en-us/articles/360019469732