We are running Windows 2003 Server, eDirectory 8.8 SP1, and ZENworks This server acts as the DHCP, DNS, and PXE server.

Recently our server has been running very slowly on multicast. An image
that used to take 30 minutes is now taking 100 minutes multicasted. This
same image takes 20 minutes unicasted. As far as I know, no changes were
made to the server.

Any suggestions would be greatly appreciated.