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SOLVED wireless stays disabled enable wireless is checked.

Posted: Sat May 28, 2011 10:57 am
by jcg624
I recently installed Mint 11 I have gone thru a number of distros and have yet to find one that I can get the wireless to work on my Acer laptop.

Acer Aspire 7552g-6061 laptop Atheros wireless chipset

I can click enable wireless but it stays disabled and is not able to detect any. I am still what you would call a noob in troubleshhooting linux.

I am considering trying Fedora 15 now too.

I. scanning WIFI PCI devices...
-- Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
==> PCI ID = 168c:002e (rev 01)
-------------------------
* II. querying ndiswrapper...
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* III. querying iwconfig...
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off

-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr 20:6a:8a:09:cb:36
inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226a:8aff:fe09:cb36/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:562 errors:0 dropped:0 overruns:0 frame:0
TX packets:712 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:415669 (415.6 KB) TX bytes:123240 (123.2 KB)
Interrupt:16

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:28 errors:0 dropped:0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1680 (1.6 KB) TX bytes:1680 (1.6 KB)

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* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
Server: 209.18.47.61
Address: 209.18.47.61#53

Non-authoritative answer:
Name: google.com
Address: 74.125.115.106
Name: google.com
Address: 74.125.115.147
Name: google.com
Address: 74.125.115.99
Name: google.com
Address: 74.125.115.103
Name: google.com
Address: 74.125.115.104
Name: google.com
Address: 74.125.115.105

Re: wireless stays disabled enable wireless is checked.

Posted: Sat May 28, 2011 3:40 pm
by remoulder
Unplug the ethernet cable and in a terminal enter

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sudo iwlist wlan0 scanning
. Post the output back here.

Re: wireless stays disabled enable wireless is checked.

Posted: Sat May 28, 2011 4:11 pm
by jcg624
john@john-Aspire-7552 ~ $ sudo iwlist wlan0 scanning
wlan0 Interface doesn't support scanning : Network is down

Re: wireless stays disabled enable wireless is checked.

Posted: Sat May 28, 2011 4:34 pm
by jcg624
iwconfig wlan0
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off

Re: wireless stays disabled enable wireless is checked.

Posted: Sat May 28, 2011 8:04 pm
by george74
I have the same wireless problem but with a twist. I installed LinuxMint 11-64 (Kayta) from a live CD on an HP Mini-1103 and everything worked 100% for at least a week with wireless up and waiting even before I could finish logging in. Then, 2 days ago the wireless connection started dropping out after a minute or 2 but would come on back up automatically within another minute or so and stay up for several minutes before dropping out again. Later in the day wireless could not be brought up even with re-booting and re-installing the program several times. Ethernet worked normally.

I tried: sudo apt-get dist-upgrade to change drivers (without being connected) and something worked because wireless could then be brought up and stayed locked on for about 3 hours with a normal download speed. Then the download speed started drifting down to less than 1 Kb/sec (from about 200) over a period of abt 1 hour. All this while another HP laptop nearby showed no degradation in wireless download speed.

Today, wireless could not be brought up at all after over an hour of trying.

Did a: sudo iwlist wlan-scanning and the results were listed as: "no scan results". sudo lspci listed nothing about wlan0

I would greatly appreciate your help in fixing this problem. Thanks,

george74

Re: wireless stays disabled enable wireless is checked.

Posted: Sun May 29, 2011 6:27 am
by remoulder
george74, please start your own thread.

jcg624, ok, a few things to try, firstly ensure the laptops wifi toggle switch is on! In a terminal enter

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dmesg | grep wlan0
and see if there are error msgs/failures reported. If that's ok you could try

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sudo ifconfig wlan0 up
then if that fails does the output mention SIOCSIFFLAGS: Operation not possible due to RF-kill, if so enter

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rfkill list all
and see if there is mention of a block wrt your wifi adaptor. If so see this thread http://ubuntuforums.org/showthread.php? ... st10748476.

Post results back here if not sure.

Re: wireless stays disabled enable wireless is checked.

Posted: Sun May 29, 2011 10:08 am
by jcg624
john # dmesg | grep wlan0
[ 15.622003] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 317.052511] ADDRCONF(NETDEV_UP): wlan0: link is not ready

Re: wireless stays disabled enable wireless is checked.

Posted: Sun May 29, 2011 10:10 am
by jcg624
rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no

Re: wireless stays disabled enable wireless is checked.

Posted: Sun May 29, 2011 10:52 am
by remoulder
jcg624 wrote:1: acer-wireless: Wireless LAN
Soft blocked: yes
Ok so you need to unblock it as per the instructions in the link I gave you. There are also possible permanent solutions in that thread.

Re: wireless stays disabled enable wireless is checked.

Posted: Sun May 29, 2011 2:24 pm
by jcg624
Thank you very much. It is working now. The fn + f3 keys work perfect now.

It detects the wireless networks in area too.