Netgear USB Control Center install fail

After plugging my Lexmark E238 printer into a Netgear Nighthawk r7000 USB port, the printer still could not be found.

I then downloaded Netgear ReadySHARE Printer Utility v 2.4.0 which is supposed to manage devices connected to the router. Attempting to install multiple times, I keep getting the message:

"NETGEAR USB Control Center

Installation is incomplete! Please reinstall again."

This is on a Mac Mini running 10.13.3.

I wanted to use router/wifi sharing for the printer, as I have with my previous Airport Extreme.

Anybody able to get a Lexmark printer to show with the R7000? And/or get USB Control Center to work, and successfully access printer across network?

On a side note, I've resorted to plugging the printer into Mini's USB port and using printer sharing. My Macbook (10.7.5) can print from it but may Powerbook (10.5.8) lists it but keeps "looking for" it during a print job. I cannot re-add it because it does not show in any of the methods of Add Printer.

My Dell laptop also does not see the Lexmark via Printer Sharing on the Mac Mini. Help!