Install network Zebra label printer

Hi,

I have a Zebra GK420d label printer. It doesn't have a built-in printserver (no LAN port) - I connect it to my Macs and PCs via USB.

Recently I've connected it to the USB port of my router (ISP provided Sagecom Fast 2704) and managed to get it working on the local network on my PCs. Unfortunately, I can't use it on my Macs - as a network printer (nothing happens when I start to print).

Has anyone managed to successfully use a (USB) Zebra printer via LAN?

Thanks!
Michal