try this.
close the shareport software.
unplug the usb cable and turn off your printer.
reboot the router after connecting to it with a lan cable and logging into the control panel. reboot is under tools, system.
after reboot is finished, launch shareport. then plug in usb cable and turn on printer.
that's how I got mine to show up (available status)
Now, I can not get the printer to connect using 5ghz. I had to switch to 2.4 on my laptop to get a connection.