Load Inetcfg.nlm
goto Bindings, press Enter
Press Insert, select Protocol IPX, press Enter
Select the network interface - Select a configured Network interface
Choose a IPX network number for the new frame type, and select the new frame type.
The default frame type for IPX on Netware 3.12 and below is Ethernet_802.3
The default frame type for IPX on Netware 4 and up is Ethernet_802.2
The default frame type for IP is Ethernet_II
It may very well be that your problem will be solved by adding the 802.3 frame type, as that is the "old" default.