Wireless network card disabled

[Betobuntu]

About 3 days ago, i remeve the battery from my laptop (Lenovo U350). and when i put the battery back on the laptop, the wifi card was not picking up any networks. my wireless card is a: Intel Pro Wireless 5100 abgn i have check out other threads but not have had this is issue by removing the battery. i thinking maybe the card got fried, but i dont see how that could happen

[maestrobwh1]

This is a hunch: open a terminal and issue these commands:

service network-manager stop
rm /var/lib/NetworkManager/NetworkManager.state
service network-manager start


then try to connect.

[Betobuntu]

i tried the commands you supplied, but i must treport that they did not Enable the wireless card. I tried them twice;

The first time i did it with the switch set to ON, typed in the commands, and nothing happened

The second time i tried it i did it with the switch set to OFF, typed in the commands and nothing again.

[Iowan]

Does the file get rebuilt - or does it stay deleted?
If you right-click Network Manager icon, does it show networking enabled?

[Betobuntu]

right clicking the network icon shows that networking is enabled, but wireless is disabled

[Betobuntu]

wired internet works fine, wireless is still grayed and labeled "Disabled" when right click on Network Manager icon.
Wireless network manual switch is set to "on" position.
Have tried rebooting with switch in both "on" and "off" position

[Betobuntu]

luis@ubuntu:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:23:8b:f2:2b:f5
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
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)


luis@ubuntu:~$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11abgn ESSIDff/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff


luis@ubuntu:~$ sudo lshw -C Network
*-network DISABLED
description: Wireless interface
product: PRO/Wireless 5100 AGN [Shiloh] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 00
serial: 00:22:fb:90:10:4c
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn latency=0 multicast=yes wireless=IEEE 802.11abgn
resources: irq:32 memory:f2000000-f2001fff
*-network
description: Ethernet interface
product: NetLink BCM57780 Gigabit Ethernet PCIe
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:08:00.0
logical name: eth0
version: 01
serial: 00:23:8b:f2:2b:f5
size: 10MB/s
capacity: 1GB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.102 duplex=half firmware=sb v2.05 latency=0 link=no multicast=yes port=MII speed=10MB/s
resources: irq:33 memory:f4500000-f450ffff

[Betobuntu]

still have not solved issue, can anybody help?

[Betobuntu]

im tryin something i read in another thread, to remove the battery, press the power button to release any stored energy in the capicitors, and reinstall the battery after a day

[Betobuntu]

i have solved the issue by pressing "F2" at initial boot, to enter the BIOS menu. Then i pressed "F9" to reset BIOS and then "F10" to save and exit.