Have been using iprint on netware 6.5 with xp clients for 2 years with

Recently tried to install a linksys router (RV042) to replace old linksys
router (befsr81) and this seems to kill communication between the xerox
printers (document center 460 and 432 and work center m24). Other iprint
accessed printers such as the dymo label printers continue to work.
Xerox printers are connected directly to the network, label printers are
connected through a dlink print server.

This is a flat network with all machines on one IP subnet
What the router would have to do with it is beyond me.

Has anyone ever run into something like this before?