Mywifiext net Having problems with setup

• Launch internet browsers such as chrome, firefox or safari
• Type mywifiext.net or 192.168.1.250 in the address bar at top of your internet browser
• Press Enter to see the New Netgear extender setup page.
• Fill up the required details to create an account and fill up time and region details.
• Click Next and let Netgear wifi extender to search 7 detect all available networks around you.
• Select your existing wifi router network that you wish to extend and click Next
• Read more https://bit.ly/3ddzZbt

Have you first established the connection between the Router and the Extender?
If so, have you connected e.g. a laptop to the Extender?
So if your WLAN networks SSID is NETGEAR, the WLAN network of the Extender is NETGEAR_EXT and you have to connect the laptop to NETGEAR_EXT.
Then you have to open your favorit internet browser and have to type in www.mywifiext.net, which I guess is a buildin Setup-Assistant.If this doesn't work, make sure, your laptop is configured, to get an ip address automatically via DHCP.
Or read http://kb.netgear.com/app/answers/detail/a_id/20912