Win NT system hang

Hi,
I have a serialized driver on Win NT 4.0 (Service Pack 5). The following scenario makes the system hang.

* The system has two cards, C1 and C2. Initially, system is booted with no cables connected to the cards. The IP binding is done to the card C1.
* When a cable is plugged into card C2, in the Interrupt handler for the LinkUp interrupt, I call NdisMIndicateStatus() with status as NDIS_STATUS_MEDIA_CONNECT. But I make this NDIS call with the NDIS_HANDLE as that of card C1 (since it has the IP binding).

Note :
* It works fine when I plug in the cable to C1 instead of C2.
* The above driver works fine with Windows 2000 when cable is connected to either C1 or C2.
* Tried installing Service Pack 6 without success.

Pls give suggestions for the above.

Thanks,
Ravi


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