If you want to change reset your NETGEAR router or modem you can follow these steps:
· Open the web browser in your computer or device which is connected to the router’s network.
· Open the NETGEAR official website.
· Enter the default username and the password.
· If you have changed the username and password enter the changed username and password.
· Click OK
· Select wireless and enter a new username in the username (SSID) field.
· Enter a new password.
· Click apply.
If in case these steps don’t work you can contact the NETGEAR router tech support.
Visit here: Netgear router technical support