Restarting Wireless Link

Hi,

I am using a Linksys WUSB11 V2.6 on a system I 
keep running 24x7.  Its running Redhat 8.0.  The
link will stay up sometimes for 1, 2, or even
3 weeks.  But,  for some reason,  it will loose
its connection.  The only way I've found to bring the
wireless link back up is a reboot.  Its configured
as eth0.  ifdown eth0 and ifup eth0 have no effect.
/etc/init.d/network stop/start/reload has not
effect.

How can I bring this link back up without rebooting?  

I'm running the April 16, 2003 version of the 
atmelwlandriver.  


# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr
00:06:25:26:A7:F5
          inet addr:192.168.1.141  Bcast:192.168.1.255
 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:1887550 errors:0 dropped:0
overruns:0 frame:0
          TX packets:7382035 errors:0 dropped:0
overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:483848865 (461.4 Mb)  TX
bytes:1678451293 (1600.6 Mb)


# iwconfig eth0
eth0      ATMEL RFMD503A  ESSID:"LinkSys" 
Nickname:"LinkSys"
          Mode:Managed  Channel:6  Access Point:
00:06:25:C6:6C:19
          Bit Rate:11Mb/s
          RTS thr=2347 B   Fragment thr=2346 B
          Encryption key:off
          Link Quality:100  Signal level:10  Noise
level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx
invalid frag:0
          Tx excessive retries:0  Invalid misc:0  
Missed beacon:0


These statistics don't change when the link is down.
iwconfig still reports Link Quality:100, Signal
level:10, and Noise level: 0.


Thanks,

Mark

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