Ubuntu: Wireless network adapter stays hard blocked


I recently installed Ubuntu for the first time and I really like it. But there is one problem I can't get rid off: my wireless adapter stays harblocked. So the option enable wifi in the network menu remains grayed out and I can't find the router where my laptop stands next to.

$ rfkill list all  0: phy0: Wireless LAN  Soft blocked: no  Hard blocked: yes  1: asus-wlan: Wireless LAN  Soft blocked: no  Hard blocked: no  

I tried ublocking it, on the command line and on my keyboard (FN+f2 did the trick in W8) but nothing seems to affect it.

my network card:

$ lspci | grep Wireless  02:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)  

some other information:

$ nm-tool    NetworkManager Tool    State: connected (global)    - Device: wlan0 ----------------------------------------------------------------    Type:              802.11 WiFi    Driver:            ath9k    State:             unavailable    Default:           no    HW Address:        24:FD:52:C5:CC:B5      Capabilities:      Wireless Properties      WEP Encryption:  yes      WPA Encryption:  yes      WPA2 Encryption: yes      Wireless Access Points  

lshw -class network

$ sudo lshw -class network    *-network DISABLED               description: Wireless interface         product: AR9485 Wireless Network Adapter         vendor: Qualcomm Atheros         physical id: 0         bus info: pci@0000:02:00.0         logical name: wlan0         version: 01         serial: 24:fd:52:c5:cc:b5         width: 64 bits         clock: 33MHz         capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless         configuration: broadcast=yes driver=ath9k driverversion=3.11.0-15-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn         resources: irq:17 memory:f7d00000-f7d7ffff memory:f7d80000-f7d8ffff  


$ uname -a  Linux brecht-laptop 3.11.0-15-generic #25-Ubuntu SMP Thu Jan 30 17:22:01 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux  

I also tried adding a file named ath9k.conf in /etc/modprobe.d/ with some options in it but still no results. I also tried some other things I read on google without even knowing well what I was doing but nothing seems to help.

So can someone help me out with this? I really like Linux but this is an unfortunate hiccup.

Update: I found out that my wifi works just fine if I close my laptop and reopen it (so after going to sleep mode or whatever it's called in Linux). But this is not the perfect solution I guess.


Had the same problem. WiFi starts working after closing and re-opening the lid. It seems that the problem is only with some Asus laptops (mine is X551C)

In one of the articles I found there is also a modprobe setting added:

echo “options asus_nb_wmi wapf=4" | sudo tee /etc/modprobe.d/asus_nb_wmi.conf  

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