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I recently installed ubuntu 12.04 on my acer aspire one d270 and the icon for connecting to wireless on the top panel doesn't work when I don't have a broadband internet cable pluged-in already. Also I previously had an Ubuntu 11.04 installed on the same computer and both wireless and and wired connections worked with that version of Ubuntu.

Edit

$ lspci
00:00.0 Host bridge: Intel Corporation Atom Processor D2xxx/N2xxx DRAM Controller         (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor D2xxx/N2xxx     Integrated Graphics Controller (rev 09)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 3 (rev 02)
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 02) 
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 02)
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 02)
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation NM10/ICH7 Family SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 02)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
02:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
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Can you edit your question with the output of lspci please? –  Seth Oct 13 '13 at 0:41
    
I also need to mention that when I start the netbook without the broadband cable pluged in ubuntu tries for a few minutes to configure the network connection and since it's unable to find any I continues without letting me connect to the wireless internet –  Calin Dragos Ion Oct 14 '13 at 20:57
    
possible duplicate of How to Install Broadcom Wireless Drivers –  Seth Oct 14 '13 at 20:58
    
^-- That should answer your question :) –  Seth Oct 14 '13 at 20:58
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