No Networking with SP2

My previous project was an Advantech PCM-5820, done with SP1. I have
upgraded it to SP2 and an Advantech PCM-9375 SBC. My apps cannot connect to
the new board with SP2.
The old board has RealTek 8139 Ethernet controller. The new one has RealTek
8100BL.

"TCP/IP Networking with Client for MS Networks" is the networking component.
The SP1 CF from the old board works (networking ok) on the new board, so
board is not broken.
The SP2 image on the new board can ping itself and other computers.
Other computers cannot ping the new board. They see its IP address, but
there's no response.
There is no firewall component in the build.
The setupapi.log file shows the driver installed okay.
The apps are MFC, CPP 6.0, using async sockets.


Any ideas of what to look for next ???

Thanks,
Tom Salicos




.

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