This is odd. A small network has a Konica-Minolta 5430 DL color
laser on the network. This printer has no support for Netware
printing, and we have hooked up none. There was a Netware 4.11 server
which I upgraded to a SBS 6.5/6.6 server. Within minutes of plugging
in the new server, the printer locked up tight. Not even the front
panel buttons work.

After a network sniff, it looks like the printer jams up within a few
packet exchanges of a SLP message from the server to the printer, a
general SLP broadcast from the printer, and an ARP answer from the
printer to the server. About 5-8 packets later, all communication
from the printer completely stops. The front panel buttons become
totally useless. It's completely replicatable.

I'm trying to figure out how to fix this. It would be nice if I could
instruct the server not to send SLP packets to the printer's IP
address, but I have no idea how to do that. I have considered putting
a small (and cheap, I hope) router in front of the printer, so that I
can filter any packets coming from the server. I've contacted
Konica-Minolta and have a case number, and will see what they have to

Two questions:
1) Any ideas on why these SLP packets turn the printer comatose?
2) Any other ideas on a fix?