I have a Samsung CPL-310N with latest drivers. I can plug it into my router, then install it as a network printer, and everything works beautifully. Once the IP address of the printer changes due to DHCP, the printer icon in "Devices and Printers" goes grey, I can no longer print to it. I've tried changing the IP address in the Port part of the printer settings, but this doesn't work. I've also tried putting in the printer's network name in instead of the port IP, and this doesn't work. The only thing that works is to delete the printer and reinstall a network printer again. I could use fixed IP at home, but surely Windows 7 should be able to cope with network printers on a DHCP network?