Suddenly no wireless internet

[bastetje]

Hi,

Im kind of a new guy. I'm using a compaq mini s110 and my wireless connection worked fine untill this afternoon...

I have installed the additional driver for my wireless card. Suddenly it shows no networks around while everything is enabled (checked on)... Please help me!

Ow and I'm using kubuntu 12.04 LTS

[bastetje]

Even after reinstalling Kubuntu it doesn't work ...

Anybody?

[oshunluvr]

Sounds it got turned off. Re-installing wipes out the evidence of what happened so now there's no logs of the event that caused it.

Does your mini have a wireless on/off switch?

Do some web searching on rfkill

[bastetje]

Compaq-Mini-110c-1100:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GSE Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GSE Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02)
00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02)
00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02)
00:1d.7 USB controller: Intel Corporation N10/ICH 7 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 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801GBM/GHM (ICH7-M Family) SATA Controller [AHCI mode] (rev 02)
01:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
02:00.0 Ethernet controller: Atheros Communications Inc. AR8132 Fast Ethernet (rev c0)

Compaq-Mini-110c-1100:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:26:55:b7:02:df
inet addr:192.168.1.173 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:55ff:feb7:2df/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:235130 errors:2 dropped:0 overruns:0 frame:1
TX packets:106076 errors:0 dropped:0 overruns:0 carrier:5
collisions:0 txqueuelen:1000
RX bytes:351089258 (351.0 MB) TX bytes:7615064 (7.6 MB)
Interrupt:44

eth1 Link encap:Ethernet HWaddr 00:26:5e:61:d2:14
inet6 addr: fe80::226:5eff:fe61:d214/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:83
TX packets:0 errors:72 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16 Base address:0xc000

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:1634 errors:0 dropped:0 overruns:0 frame:0
TX packets:1634 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:128414 (128.4 KB) TX bytes:128414 (128.4 KB)

Compaq-Mini-110c-1100:~$ iwconfig
lo no wireless extensions.

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

eth0 no wireless extensions.

[bastetje]

@oshunluvr

Thnx for replying, but yes my mini has a switch like that and everything is switched on as it should be, also the network widget shows wireless enabled...
The strange thing is it stopped working while I was working on the mini... and it kept asking for kde wallet password, but after reinstalling kubuntu that shouldn't be the problem anymore...

[oshunluvr]

What are the results of:

sudo rfkill list

sudo ifconfig ethup

[bastetje]

Compaq-Mini-110c-1100:~$ sudo rfkill list
[sudo] password for thomas:
0: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no

Compaq-Mini-110c-1100:~$ ifconfig ethup
ethup: error fetching interface information: Device not found

[oshunluvr]

Sorry, Insert key got me:

sudo ifconfig eth1 up

[oshunluvr]

This wireless card has always been trouble.

Lot's of advice on this page:

http://askubuntu.com/questions/12552...oadcom-bcm4312

[bastetje]

sudo ifconfig eth1 up

did nothing

[bastetje]

@Oshunluvr

After trying few options given in that other thread... still doesn't work. My mini does recognize the wrls card en everything is checked on... it only doesn't show any networks around...

[oshunluvr]

I got nothing else - sorry.

[dibl]

I've got a BCM4312 on my Dell E6500, running Debian. It needs the proprietary Broadcom firmware. Go to this website for guidance. My E6500 has a broken ethernet chip, so I followed the "b43 -- No Internet Access" instruction, skipping Step 1, downloading the 2 files shown in Step 2 onto a USB stick, and then (with the two downloaded files copied to the E6500) followed Step 3. After a reboot, I had perfect wireless connectivity.