192.168.0.2 is the ip address of computer or mobile device. It is the only one in the LAN. IP is assigned by the wireless router. The LAN's IP is from 192.168.0.1
How to set 192.168.0.2?
This ip can be used by router or computer, if it has been used by router, you should login the router, change the router's default ip address.How to log in the wireless routerCan not connect to the router
When you have already logged in to the router, you can set the IP of a computer or a mobile device to 192.168.0.2, the computer or mobile device can access the Internet through the router.