Problem connecting two simultaneous networks TCP/IP - NWLink IPX/SPX

animateme

Reputable
Feb 5, 2015
6
0
4,510
Hello,

I am trying to setup two separate network connections, using two separate network cards, on a Windows XP computer. One connection will be for a TCP/IP Windows based network (with internet access) and the other will be for a NWLink IPX/SPX/NetBIOS, (DOS based) Novell type network.

I have installed both NICs but the problem I am having is that when both networks are connected at the same time, the TCP/IP Windows based network connects fine but the NWLink IPX/SPX network does not connect. However, if I unplug the cable of the TCP/IP Windows based network, then the NWLink IPX/SPX network connects fine.

I assume that the TCP/IP Windows connection is causing some kind of conflict somehow with the other connection and that is why it is not allowing it to connect.

I have tried disabling the NWLink IPX/SPX/NetBIOS protocol in the Connection Properties for the TCP/IP Windows connection and have also tried changing the Network Connection Bindings but it does not make any difference.

Would there be anything that I can try to troubleshoot where the issue is? Any help will be greatly appreciated.

Thank you.
 
It is stated - Windows XP

Animateme - go to Network properties for each adapter, and make sure protocols are bound only to their respective adapters. I used to run TCP/IP and IPX over single adapter, and it worked pretty well.

It;s being a while (15 years) since I touched Netware, so I cannot give advice how to troubleshoot it.
 
Thank you. One thing I notice is whether I select Connection 1 or Connection 2 when configuring the bindings, whatever changes I make to the enabled/disabled protocols are applied to both connections. It does not allow me to disable specific protocols for each connection. Any idea why?
Thanks,
 
Here are the screen captures for the configurations. As you can see, this is Windows in Spanish but you should be able to figure it out (if not, please let me know and I will translate).

This is the setup for the NWLink IPX/SPX/NetBIOS, (DOS based) Novell type network:
iyo7x2.jpg



This is the setup for the TCP/IP Windows based network:
6o249x.jpg

Thank you.
 
Disable Microsoft Client over IPX for both adapters
Disable Netware Client over TCP for both adapters
Disable IPX protocol for Adatper A
Disable TCP protocol for Adapter B

The idea is to have IPX only as transport protocol on Adapter B (for access to Netware), and TCP only on Adapter A (for access to Windows shres).
I see you are using Microsoft' Netware Client. I remember installing Netware-provided client for some reason, but I cannot recall why 😉
 
Thank you for your response. I tried your suggestion but with this configuration there is no connection at all with Adapter B. The TCP/IP protocol has to be enabled in order to get a connection on this Novell based network (DOS). Any idea why this is happening?
 
I doubt your DOS clients are using TCP/IP to connect to Netware. I haven't touched Netware server since early 2000's, and I don't remember many things, but it seems I don't understand your network.
- you have NetWare server, DOS workstations, and some Windows workstations connected to this network (Adapter B)
- you have Windows-only network, connected to Adapter A.

I would disconnect your Windows computer from the TCP/IP network (Adapter A_, and make sure that Netware part works OK
 
I finally solved this by putting both networks on the same hub, connected to a single NIC and using the same subdomain. Go figure... it was that simple!
Thank you all for you help. Greatly appreciated!
 

Latest posts