EXTENDER network not showing up

[Derrik]

NETGEAR_EXT not showing up in my list of networks,

I reset the Nighthawk and the Extender, still not shpowing up

[plemans]

What router do you have? 

what firmware is on the extender? 

Did you already setup the ex6250? 

If so, it sets up by default in mesh "one ssid" mode. Meaning it uses the same ssid as the router. 

and sometimes a factory reset isn't pushed and held long enough. Make sure to push and hold for 7-15 seconds while its fully powered on. 

You could also log into the router and check its attached devices page. If its connected, it should be on there. You could use that IP address to log into it.