WLAN among qnx with Orinoco card

i configured the wlan with 3 qnx6.3.2 machines, the problem was that the machine could not ping thru one another, i think the driver add on should be okay, here is my script:
[color=orange] io-net -d orinoco channel=11,network=mywork,mode=adhoc -p tcpip
ifconfig en0 192.168.1.1

and the nicinfo output:
[color=orange]ORiNOCO 802.11 Wireless Ethernet Controller

Physical Node ID … 00022D 01B57F
Current Physical Node ID … 00022D 01B57F
Current Operation Rate … 11.00 Mb/s half-duplex
Active Interface Type … Unknown
Maximum Transmittable data Unit … 1514
Maximum Receivable data Unit … 1514
Hardware Interrupt … 0x3
I/O Aperture … 0x300 - 0x33f
Promiscuous Mode … Off
Multicast Support … Enabled

Station Name …
Network Name (SSID) …
Channel: … 4294967295
BSS Type … Unknown

Packets Transmitted OK … 5
Bytes Transmitted OK … 210

Packets Received OK … 3
Bytes Received OK … 0

Hope anybody could figure out this problem, thx.