Network freezing

[Tapas Ranjan]

Hi :
	I am a new chap to Linux. After installing RH9.0 on my 
DELL-inspiron, I tried to use my wireless card, by putting it
through eth1. There is some network provided, where I am working, 
but when I try to login and open some application in some other 
machine(which is also under same network, but under firewall) using 
wireless-network through my laptop, the network freezes. It only 
works for a few second about 40 sec or so.
	The terminal used for ssh freezes and does not respond.
/sbin/ifconfig eth1 gives this result :

eth1      Link encap:Ethernet  HWaddr 00:E0:00:13:2B:51  
          inet addr:xxx.xx.xx.xxx  Bcast:xx.xx.xx.xxx  Mask:xxx.xxx.xxx.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:665 errors:0 dropped:0 overruns:0 frame:0
          TX packets:259 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:56801 (55.4 Kb)  TX bytes:84406 (82.4 Kb)
          Interrupt:3 Base address:0x100 

The packets doesn't change until I do the network restart by
/etc/rc.d/init.d/network restart

	But it freezes again, if I try to use the network.
Can anybody please suggest something. Please write 
if you need any other or more information.

	Cheers
	---Tapas