De ar all, i installed ubuntu 10.04 in a dell laptop and no network connection/wireless after enabled the proprietary hardware drivers wify working fine but no wired connection found, my system details, administrator@administrator-laptop:~$ ifconfig eth0 Link encap:Ethernet HWaddr 70:f1:a1:c2:e5:f2 inet addr:10.1.1.6 Bcast:10.1.255.255 Mask:255.255.0.0 inet6 addr: fe80::72f1:a1ff:fec2:e5f2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10265 errors:0 dropped:0 overruns:0 frame:10364 TX packets:2124 errors:6 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3607607 (3.6 MB) TX bytes:367581 (367.5 KB) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:16 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:960 (960.0 B) TX bytes:960 (960.0 B) administrator@administrator-laptop:~$ iwconfig lo no wireless extensions. eth0 IEEE 802.11 Access Point: Not-Associated Link Quality:5 Signal level:211 Noise level:166 Rx invalid nwid:0 invalid crypt:0 invalid misc administrator@administrator-laptop:~$ lshw -C Network WARNING: you should run this program as super-user. *-network description: Wireless interface product: Broadcom Corporation vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 01 serial: 70:f1:a1:c2:e5:f2 width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=5.60.48.36 ip=10.1.1.6 latency=0 multicast=yes wireless=IEEE 802.11 resources: irq:17 memory:f0500000-f0503fff *-network UNCLAIMED description: Ethernet controller product: AR8152 v1.1 Fast Ethernet vendor: Atheros Communications physical id: 0 bus info: pci@0000:04:00.0 version: c1 width: 64 bits clock: 33MHz capabilities: bus_master cap_list configuration: latency=0 resources: memory:f0400000-f043 administrator@administrator-laptop:~$ lspci -nn 00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0044] (rev 12) 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 12) 00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06) 00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 06) 00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56] (rev 06) 00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 [8086:3b42] (rev 06) 00:1c.1 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 [8086:3b44] (rev 06) 00:1c.5 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 [8086:3b4c] (rev 06) 00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 06) 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev a6) 00:1f.0 ISA bridge [0601]: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller [8086:3b0b] (rev 06) 00:1f.2 IDE interface [0101]: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA IDE Controller [8086:3b2e] (rev 06) 00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30] (rev 06) 00:1f.5 IDE interface [0101]: Intel Corporation 5 Series/3400 Series Chipset 2 port SATA IDE Controller [8086:3b2d] (rev 06) 00:1f.6 Signal processing controller [1180]: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem [8086:3b32] (rev 06) 03:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4727] (rev 01) 04:00.0 Ethernet controller [0200]: Atheros Communications AR8152 v1.1 Fast Ethernet [1969:2060] (rev c1) ff:00.0 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers [8086:2c62] (rev 02) ff:00.1 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture System Address Decoder [8086:2d01] (rev 02) ff:02.0 Host bridge [0600]: Intel Corporation Core Processor QPI Link 0 [8086:2d10] (rev 02) ff:02.1 Host bridge [0600]: Intel Corporation Core Processor QPI Physical 0 [8086:2d11] (rev 02) ff:02.2 Host bridge [0600]: Intel Corporation Core Processor Reserved [8086:2d12] (rev 02) ff:02.3 Host bridge [0600]: Intel Corporation Core Processor Reserved [8086:2d13] (rev 02)ffff ioport:2000(size=128) pan0 no wireless extensions. please help me Shali