Netgear19 isn't a router mode. Its more than likely your ssid name.
But regardless of that, most extenders are compatible with the majority of routers. It can get a bit sketchy when you get into mesh routers bu tthey usually still connect
Current setup: CAX80->Trendnet TEG-S380->GS716T-> RBK752->pi-hole 1.4gig download/50mbps upload We’re members of the public helping out on our own time.
