When you buy a new jiofi2 router, there is a default said with password is given on the box, using which you can connect your device to use internet. The default username and password is also given to login to router configuration web app that you can go through the http://jiofi.local.HTML
It is necessary for everyone to reset this default username and password.
The attached video explains it well to configure your jiofi2 router.
Add a Teacher Note to share how you incorporated it into your lesson.