Can't connect to printer with Orbi

We recently moved, and I upgraded to an Orbi router from a single-band Belkin. Before we moved, our Brother printer worked just fine; now, though, even though I can find the printer with my computer, I constantly get a "printer is in error state message."

I can easily connect the printer to the network, and the wifi indicator shows that it's connected.  The problem comes when I try to add the printer to my computer--it has never worked.

I've reset both the printer and Orbi to factory settings. I've used the cd that came with the printer and I've downloaded the drivers after deleting them from my computer. I've tried WPS and I've tried adding it through the IP address. Computers aren't difficult for me usually, but this problem has me extremely frustrated.

I even bought a new printer (also a Brother) and tried to install that one, but no luck over this network.

Any suggestions?  I'm running Windows 10 with the latest updates. I have a Netgear modem and the Orbi router. I really have to have these printers set up (I'm a teacher), but I've already spent so much time trying that I really can't afford to waste any more time.

The Orbi is two years old, recently restored to factory settings.

Thanks in advance!