cant connect to wifi

[vaishnavi mohan]

i am not able to connect to wifi. there is no enable wifi option in network menu. how can i solve this issue

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-108-generic 3.13.0-108.155
ProcVersionSignature: Ubuntu 3.13.0-108.155-generic 3.13.11-ckt39
Uname: Linux 3.13.0-108-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.23
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: vaishu 1624 F.... pulseaudio
 /dev/snd/controlC0: vaishu 1624 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Feb 5 15:14:16 2017
HibernationDevice: RESUME=UUID=c2875e73-69d3-4af6-a684-4549c277bfdd
InstallationDate: Installed on 2015-08-25 (530 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 064e:930b Suyin Corp.
 Bus 001 Device 002: ID 0a5c:216d Broadcom Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Notebook
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-108-generic.efi.signed root=UUID=9908fc28-804a-4434-bebe-3936e27dfd42 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-108-generic N/A
 linux-backports-modules-3.13.0-108-generic N/A
 linux-firmware 1.127.23
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2017-01-09 (26 days ago)
dmi.bios.date: 05/17/2016
dmi.bios.vendor: Insyde
dmi.bios.version: F.21
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 80C1
dmi.board.vendor: HP
dmi.board.version: 96.47
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.21:bd05/17/2016:svnHP:pnHPNotebook:pvrType1ProductConfigId:rvnHP:rn80C1:rvr96.47:cvnHP:ct10:cvrChassisVersion:
dmi.product.name: HP Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Brad Figg (brad-figg)]

This change was made by a bot.

[Po-Hsu Lin (cypressyew)]

You're using a Broadcom Wifi card, have you tried to install a proprietary driver for it?
http://askubuntu.com/questions/55868/installing-broadcom-wireless-drivers

0d:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
 Subsystem: Hewlett-Packard Company Device [103c:804a]
 Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Interrupt: pin A routed to IRQ 255
 Region 0: Memory at c3000000 (64-bit, non-prefetchable) [size=32K]
 Capabilities: <access denied>

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc7

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]