Sometime a wireless interface using DriverLoader may not be able to associate after running a series of test cases. Before starting the next run of tests, you may need to restart/reset the wireless driver. This can be done as follows:
Stop the associated wireless network interface (typically labeled as ethX or wlanX):
# /sbin/ifdown wlan0
Restart DriverLoader:
# /etc/init.d/driverloader restart
Restart the associated wireless network interface::
# /sbin/ifup wlan0
To check that the wireless interface has come back up properly you can issue the ifconfig command and verify that the interface is available. You can also do a simple scan to verify that the interface is seeing wireless networks:
# /sbin/ifconfig -a # iwlist wlan0 scan