192.168.1.250 is the default NETGEAR Extender Login IP address, that you can use to access your extender admin interface. This 192.168.l.250 can be used for both setup and configuration of your extender. In case, you want to make any kind of changes to your extender wireless network such as Wi-Fi password, or Wi-Fi name. You should use this IP address. It's pretty easy to make changes, when you use the right method. For more details, you can check your instruction manual book that came along with your extender.