EX7300 On Light working only

I am running Windows 10 Pro ver 20H2.  My router is the Nighthawk AX12 (RAX120).  I am using the Netgear extender EX7300.  I attempted to update the extender with the latest firmware after receiving an email notification from Netgear.  The firmware did not work.  As a matter of fact, the extender’s router link, client link, and WPS turned off.   I received the message, “You are not connected to your extender's Wi-Fi network on the internet.  In Windows I checked my Network status and it displays only an Ethernet Private network.  Under the heading of “change adapter options, it only list the Ethernet Network Realtek PCIe GbE Family controller.   When I log into my Router online at routerlogin.net, I can see the extender listed under Access Control as a device allowed but not currently connected to the network.  This section only gives MAC addresses.   The only good thing is the “On” light still works.   Whenever I unplug the extender and plug it back into the wall outlet, I can turn the extender off.  When I turn the extender on, all the lights come on for just a second.  The on light changes from amber to green.  The remaining three lights, Router link, Client link and WPS lights remained off.

I have done about three factory resets, plug into the wall, unplug from the wall several times.   I have used an Ethernet cable to access the extender.  The results of that action is that it turns on the WPS. After I unplug the Ethernet cable from the extender and turn on the EX7300, still no router link, client link, and the WPS blinks for about a minute and it turns off. 

Since I have given more than enough money to Netgear over the years for their routers, I am not about to pay for premium service.  I am hoping that in the “Season of Giving” than someone out there can give some free advice on how I can turn my extender back on to start working again.  I hope that I have given all the information that is needed.  Thanks in advance.