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Drive mapping disconnection issue

We have a combination of old and new networking components currently on our network. Approx 70 workstations are running through 2900 and 2950 Cisco switches and they are connecting up with 9 NT servers and 1 Novell 3.11 Server.

The problem is that while running a 16bit program from a mapped drive it times out and crashes. When I type net use from the command prompt I see that the drive I was using has been set as disconnected. The mapping is pointed to a Win2k Server. The protocols loaded on workstation are IPX/SPX 32, IPX/SPX and TCP/IP. Protocols on the Server are IPX/SPX and TCP/IP.

We've tried everything on the Microsoft side to get this running but it still crashes. Is it possible that the Cisco Switches are causing the disconnect? Can I get some suggestions on how to proceed with trouble shooting this situation?

The application running off the server takes approximately 30 minutes to complete.

Than you

Cisco Employee

Re: Drive mapping disconnection issue

Do you use VLANs? Ifservers and clients are in different VLANs, try putting them in one VLAN and see if it makes any difference. SPAN the server port and client port and capture sniffer traces to troubleshoot. You can download a free sniffer at

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