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I have bought a USB Wireless Adapter made by SignalKing because I broke my laptop's hardware switch of the embedded adapter. Despite the fact that I can use it on Windows without having any issue, while using Ubuntu (14.10) I get this message:

Wi-Fi Network (Ralink 802.11 nWlan) Wi-Fi is disabled by hardware switch

But there's no hardware switch on SignalKing. The green light showing the adapter is working, is on.

Here are some of the commands I used and the output:

sudo rfkill unblock all

But nothing happened

lspci -nnk | grep -iA2 net

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.

RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136]

(rev 02) Subsystem: Toshiba America Info Systems Device [1179:ff1e]

Kernel driver in use: r8169 03:00.0 Network controller [0280]: Intel

Corporation WiFi Link 5100 [8086:4232] Subsystem: Intel Corporation

WiFi Link 5100 AGN [8086:1201] Kernel driver in use: iwlwifi

lsusb

Bus 002 Device 003: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter Bus 002 Device 001: ID 1d6b:0002 Linux

Foundation 2.0 root hub Bus 008 Device 001: ID 1d6b:0001 Linux

Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux

Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux

Foundation 1.1 root hub Bus 005 Device 002: ID 1a2c:0040 China

Resource Semico Co., Ltd Bus 005 Device 001: ID 1d6b:0001 Linux

Foundation 1.1 root hub Bus 001 Device 002: ID 04f2:b008 Chicony

Electronics Co., Ltd USB 2.0 Camera Bus 001 Device 001: ID 1d6b:0002

Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux

Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux

Foundation 1.1 root hub

sudo lshw -c network

*-network

   description: Ethernet interface

   product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller

   vendor: Realtek Semiconductor Co., Ltd.

   physical id: 0

   bus info: pci@0000:02:00.0

   logical name: eth0

   version: 02

   serial: 00:1e:33:55:fc:92

   size: 10Mbit/s

   capacity: 100Mbit/s

   width: 64 bits

   clock: 33MHz

   capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation

   configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes

port=MII speed=10Mbit/s

   resources: irq:44 ioport:3000(size=256) memory:d0010000-d0010fff memory:d0000000-d000ffff   *-network DISABLED

   description: Wireless interface

   product: WiFi Link 5100

   vendor: Intel Corporation

   physical id: 0

   bus info: pci@0000:03:00.0

   logical name: wlan0

   version: 00

   serial: 00:16:ea:a7:23:94

   width: 64 bits

   clock: 33MHz

   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless

   configuration: broadcast=yes driver=iwlwifi driverversion=3.16.0-24-generic firmware=8.83.5.1 build 33692

latency=0 link=no multicast=yes wireless=IEEE 802.11abgn

   resources: irq:46 memory:d4200000-d4201fff   *-network DISABLED

   description: Wireless interface

   physical id: 2

   bus info: usb@2:2

   logical name: wlan1

   serial: 00:25:22:48:a8:8e

   capabilities: ethernet physical wireless

   configuration: broadcast=yes driver=rt2800usb driverversion=3.16.0-24-generic firmware=N/A link=no multicast=yes

wireless=IEEE 802.11bgn

sudo rfkill list all

0: phy0: Wireless LAN

Soft blocked: no
Hard blocked: yes

1: phy1: Wireless LAN
Soft blocked: no
Hard blocked: no

lsmod

Module Size Used by bnep 19543 2 rfcomm 69509 0 bluetooth 446190 10

bnep,rfcomm 6lowpan_iphc 18702 1 bluetooth hid_generic

12559 0 coretemp 13441 0 kvm_intel

143553 0 snd_seq_midi 13564 0 kvm

459843 1 kvm_intel snd_seq_midi_event 14899 1 snd_seq_midi

snd_rawmidi 30876 1 snd_seq_midi joydev

17344 0 uvcvideo 81065 0 videobuf2_vmalloc

13216 1 uvcvideo videobuf2_memops 13362 1 videobuf2_vmalloc

radeon 1416372 3 serio_raw 13434 0

videobuf2_core 59104 1 uvcvideo snd_seq 67224

2 snd_seq_midi_event,snd_seq_midi v4l2_common 15682 1

videobuf2_core snd_hda_codec_realtek 76887 1

snd_hda_codec_generic 68914 1 snd_hda_codec_realtek parport_pc

32741 0 snd_hda_codec_hdmi 47547 2 videodev

149725 3 uvcvideo,v4l2_common,videobuf2_core ppdev

17671 0 r852 18075 0 sm_common

16860 1 r852 media 21963 2 uvcvideo,videodev lp

17759 0 parport 42299 3 lp,ppdev,parport_pc usbhid

52574 0 snd_hda_intel 30379 5 snd_hda_controller

35152 1 snd_hda_intel hid 110426 2

hid_generic,usbhid nand 68630 2 r852,sm_common

snd_hda_codec 139675 5

snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller nand_ecc 13312 1 nand snd_hwdep 17698 1

snd_hda_codec nand_bch 13227 1 nand bch

17397 1 nand_bch nand_ids 12723 1 nand snd_pcm

104102 4

snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller arc4

12608 4 mtd 59628 2 nand,sm_common ttm

89406 1 radeon drm_kms_helper 61627 1 radeon r592

18040 0 iwldvm 236430 0 memstick

16966 1 r592 lpc_ich 21093 0 toshiba_acpi

28320 0 drm 310919 6 ttm,drm_kms_helper,radeon

iwlwifi 182909 1 iwldvm i2c_algo_bit 13406 1

radeon sparse_keymap 13948 1 toshiba_acpi wmi

19193 1 toshiba_acpi toshiba_bluetooth 12867 0 snd_seq_device

14497 3 snd_seq,snd_rawmidi,snd_seq_midi snd_timer 29513

2 snd_pcm,snd_seq snd 87611 21

snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device rt2800usb 27139 0 rt2x00usb 20742 1

rt2800usb rt2800lib 93180 1 rt2800usb rt2x00lib

55170 3 rt2x00usb,rt2800lib,rt2800usb soundcore 15052 2

snd,snd_hda_codec shpchp 37040 0 video

20128 0 mac80211 660592 4

rt2x00lib,rt2x00usb,rt2800lib,iwldvm mac_hid 13227 0

cfg80211 510218 4 iwlwifi,mac80211,rt2x00lib,iwldvm

crc_ccitt 12707 1 rt2800lib psmouse 106548

0 firewire_ohci 44323 0 ahci 34062 4

libahci 32424 1 ahci sdhci_pci 23261 0

sdhci 43448 1 sdhci_pci firewire_core 68671

1 firewire_ohci r8169 71471 0 crc_itu_t

12707 1 firewire_core mii 13934 1 r8169

dmesg | grep rt2

[ 6.208167] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 3070, rev 0201 detected [ 6.301516] ieee80211 phy0: rt2x00_set_rf:

Info - RF chipset 0005 detected [ 6.375882] usbcore: registered new

interface driver rt2800usb

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It may seems naive but in my thinkpad t430 when I deactivate the wireless using the hardware switch it also blocks the usb adapter (and I got this same message), to make it work I just to keep the switch on.

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