Ubuntu crashes (?) my wireless adapter from time to time

[Behrang Saeedzadeh]

Hi all

This has happened two times sinece I installed Hoary on my system yesterday. 
Suddenly my wireless connection is not working anymore. A screenshot showing 
the wireless conn. indicator is attached.

I tried to solve it without restarting the system by executing the following 
commands with no success:

behrangsa at Ubuntu:~$ sudo ifup eth1
Password:
Sorry, try again.
Password:
ifup: interface eth1 already configured

This showed that my wireless adapter is already up. Then I did this:

behrangsa at Ubuntu:~$ sudo ifdown eth1
Internet Systems Consortium DHCP Client V3.0.1
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/eth1/00:0e:35:78:d7:f6
Sending on LPF/eth1/00:0e:35:78:d7:f6
Sending on Socket/fallback
DHCPRELEASE on eth1 to 192.168.1.1 <http://192.168.1.1> port 67

behrangsa at Ubuntu:~$ sudo ifup eth1
Internet Systems Consortium DHCP Client V3.0.1
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/eth1/00:0e:35:78:d7:f6
Sending on LPF/eth1/00:0e:35:78:d7:f6
Sending on Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 <http://255.255.255.255> port 67 
interval 6
DHCPDISCOVER on eth1 to 255.255.255.255 <http://255.255.255.255> port 67 
interval 11
DHCPDISCOVER on eth1 to 255.255.255.255 <http://255.255.255.255> port 67 
interval 7
DHCPDISCOVER on eth1 to 255.255.255.255 <http://255.255.255.255> port 67 
interval 12
DHCPDISCOVER on eth1 to 255.255.255.255 <http://255.255.255.255> port 67 
interval 16
DHCPDISCOVER on eth1 to 255.255.255.255 <http://255.255.255.255> port 67 
interval 9
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

Again, I couldn't solve the problem without restarting.

BTW - The wireless went of once again when I was writing this email :(

Any help will be appreciated.

Best Regards,
Behrang.

-- 

Behrang Saeedzadeh
http://www.jroller.com/page/behrangsa
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