Public bug reported:

I have my personal laptop and it contains PCI Ralink r3290 wifi adaptor
with bluetooth and when i have installed the fresh version of Ubuntu
16.04x64 it doesn’t work at all on boot up. The wifi is disabled by
default and the it doesn’t activates even by pressing the key and when i
go the network settings airplane mode is also enabled and when i try to
disable airplane mode it switches back on. I dont know whats going
wrong. Earlier my wifi works on ubuntu 15.04. I have tried almost every
solution and none works in the latest LTS release.

Please help I am unable to use internet in ubuntu

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-21-generic 4.4.0-21.37 [modified: 
boot/vmlinuz-4.4.0-21-generic]
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  shankey    1536 F.... pulseaudio
 /dev/snd/controlC1:  shankey    1536 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun May  1 17:02:12 2016
HibernationDevice: RESUME=UUID=9fdda691-a6ae-4494-99e3-b76fde1f33a6
InstallationDate: Installed on 2016-04-24 (7 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
 Bus 001 Device 003: ID 05c8:036e Cheng Uei Precision Industry Co., Ltd 
(Foxlink) Webcam
 Bus 001 Device 002: ID 8087:8000 Intel Corp. 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Hewlett-Packard Compaq 15 Notebook PC
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic 
root=UUID=609ae58a-a43f-4f7b-9a61-e21d3caf457a ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-21-generic N/A
 linux-backports-modules-4.4.0-21-generic  N/A
 linux-firmware                            1.157
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/26/2015
dmi.bios.vendor: Insyde
dmi.bios.version: F.39
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 2211
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 86.52
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnInsyde:bvrF.39:bd05/26/2015:svnHewlett-Packard:pnCompaq15NotebookPC:pvr0991100000000000000600087:rvnHewlett-Packard:rn2211:rvr86.52:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: Compaq 15 Notebook PC
dmi.product.version: 0991100000000000000600087
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1577140

Title:
  Wifi Ralink R3290 disabled by default in ubuntu 16.04

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