Problem with network in QNX4.25E

Hi all!
We have PC in 2 network card. Network card - Intel82559. Load two network
drivers Net.ether82557. Who response fault logical network from program on
watcom C. Function qnx_net_alive() returned status node in network, but no
response status logical network. Who get source code util netmap or netinfo?
Netmap returned status logical network.
Thanks for any insights.