Problem in 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.
Gleb O.
Plekhanov
Russia