To change the NETGEAR username and the password:
1) Go to the web browser and type routerlogin.net in the address bar of the browser.
2) Enter the default username and password (Default username: Admin / Default password: password)
3) Click OK. The basic homepage will appear select wireless.
4) Enter new username as you want in the Name (SSID) field.
5) Enter the new password.
6) Click apply
If these steps don’t work then call the Netgear router customer support. They will talk to you and solve your problem.
Visit here: Netgear router customer service