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I've been using this laptop at my house, and it worked fine with a secured network and otherwise similar setup. (at home it was connected to a cable modem, here it's att dsl) Now, however, I can see the wireless network and try to connect, but the nm-applet icon just spins for a minute or so and then displays the "disconnected" message.

when I change the network settings to wpa security, this is reflected in the network settings screen.

my iPhone found and connected to this network with no input from me.

I can plug a cable into the router and be online.

from ifconfig:

eth1      Link encap:Ethernet  HWaddr 00:19:7e:77:8e:48  
          inet6 addr: fe80::219:7eff:fe77:8e48/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:17

from lspci:

03:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)

from iwconfig:

eth1      IEEE 802.11  Access Point: Not-Associated   
          Link Quality:5  Signal level:0  Noise level:0
          Rx invalid nwid:0  invalid crypt:0  invalid misc:0
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Could the router have MAC address filtering? – Dan Jul 6 '10 at 19:04
I'd found NetworkManager to be less than helpful for one of my laptops. Wicd worked where NM didn't and the complexities of WPA association were more than I cared to debug. wicd.sourceforge.net – msw Jul 6 '10 at 19:05
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