Wi-Fi doesn't work after power save mode

[GoogleCodeExporter]

What steps will reproduce the problem?

1. Enable the Wi-Fi function 
2. Idle the computer and wait for the power save mode turn on

What is the expected output? What do you see instead?

The Wi-Fi function should working normally. However, the WLAN cannot scan any 
SSID after the power save mode

Original issue reported on code.google.com by wilson...@gmail.com on 9 Aug 2009 at 8:01

[GoogleCodeExporter]

Could you please let us know your platform type and wifi device type?

Original comment by beyounn@gmail.com on 10 Aug 2009 at 3:00

[GoogleCodeExporter]

I have the same issue with my 1000H installed with the 090820 USB image.
The wifi i'm using is in WEP encrpytion.

Original comment by tlau...@gmail.com on 24 Aug 2009 at 2:37

[GoogleCodeExporter]

I tested ath9k device. It works ok after wake up. It seems that we have a driver
issue here.

Original comment by beyounn@gmail.com on 27 Aug 2009 at 5:02

[GoogleCodeExporter]

Issue 33 has been merged into this issue.

Original comment by beyounn@gmail.com on 27 Aug 2009 at 5:03

[GoogleCodeExporter]

Having the same issue. I'm on an T60 and a m200 one is 
t60 lspci (Intel(R) PRO/Wireless 3945ABG )
http://thomasgersdorf.com/linux/index.php/Output_of_lspci
m200 lspci (intel wifi)
Network controller: Intel Corporation PRO/Wireless 2200BG 
http://www.freewebs.com/duckzland/m200.html

Original comment by tyler51...@gmail.com on 21 Jun 2010 at 4:33

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Hi, guys! I have the same issue - wifi does not work after wakeup from sleep 
mode.
I have one dirty fix, maybe this info will help developers to fix it later.

After wakeup press Alt+F1 to go the root console. type without quotes "ip set 
link up dev wlan0" and press enter (wlan0 is your wifi device, can be 
eth1/eth2, etc...). Press Alt+F7 to return into Android. After it Wi-Fi will 
work as usual.
My device is ASUS EEEPC A701 4G, wifi driver is ath5k. Sometimes wifi won't 
enable link, so need to do 'modprobe -r ath5k && modprobe ath5k && ip link set 
up dev wlan0'.

Original comment by kof...@gmail.com on 16 Jan 2011 at 3:43

[GoogleCodeExporter]

Thanks for this dirty fix :). Same here on ASUS EEEPC A701 4G.

Original comment by oluj...@gmail.com on 24 Jan 2011 at 12:54

[GoogleCodeExporter]

No wifi for my EEEPC 701 4G on boot.

the dirty fix solve the problem for me.

Thanks

Original comment by fru...@gmail.com on 30 Jan 2011 at 9:39

[GoogleCodeExporter]

Can confirm the bug on EeePC 1005P

Original comment by cyber...@gmail.com on 26 Apr 2011 at 8:32

[GoogleCodeExporter]

Same issue on Viewpad 10 android-x86-2.2-viewpad10-20110221

Original comment by Nicknack...@gmail.com on 3 May 2011 at 3:37

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Same here on eeepc 1005ha

Original comment by alfredtr...@gmail.com on 26 Aug 2011 at 6:53

[GoogleCodeExporter]

no wifi at all, can't connect,: says obtaining ip address, then disconnect

Original comment by nick2801...@gmail.com on 13 Sep 2011 at 2:03

[GoogleCodeExporter]

same condition as comment 14, can detect wifi, but can't connect, says: 
obtaining ip address, then Remembered but still no wifi connection
using Atheros AR5B95 Wireless Network Adapter

Original comment by r.yanc...@yahoo.com on 5 Oct 2011 at 3:36

[GoogleCodeExporter]

My pad can not find sierra wireless (7880) and my D-link Awd 121
This is my pad: Prestanda: Skärm: 10,1" Capacitive multi-touch 1024*600 LED 
Processor: Intel Atom N450 @1.66GHz Chipset: Intel NM10 Ram: 2GB DDRII @667Mhz 
Hårddisk: 320GB @5400rpm Ljudkort: Realtek HD Ljud, Mic & hörlurs ingång. 
Camera: 1,3MP med stöd för msn etc. Wifi: 802.11b/g Bluetooth: 2.1 3G: Ja, 
Stoppa in ditt sim kort i surfplattan RJ4 Ethernet: Nej Kortläsare: 4i1 
läsare MS/SD/MMC CD/DVD: Nej Portar, 3st USB, 1st VGA, 1st DC port, Mic & 
Hörlur Operativsystem: Nej (Win 7 Förinstallerad testversion) Knappar: 
Powerknapp & Menyknapp Batteri: 3000mAh, LION Batteri Vikt: 900g Storlek: 
290×150×18mm Färg: Svart

Original comment by leifpor...@gmail.com on 17 Oct 2011 at 5:14

[GoogleCodeExporter]

try to manually add your SSID and password when the device keeps saying 
obtaining ip

Original comment by lowiek...@gmail.com on 3 Nov 2011 at 1:21

[GoogleCodeExporter]

It's the same on Aus eee t101mt. And I've got a homescreen restore after every 
wake up also. 
Any solution? 

Original comment by benedikt...@googlemail.com on 31 Jan 2012 at 12:02

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

I have a Asus EeePC 1215B.
I test some realeases of Android X86 from 1.6 thru 4.0.
The Release for Brazor never work on my machine, just loop at startup.
I was fine with 4.0 for EeePC and bring it into sleepmode.
Since that i cant login to any network. I find some wlans but if i connect, 
signal strengh of the choosen network goes down. The message change from 
realease to release:

1.6/2.2/2.3 says: Authenticate with Network and break this after a few secounds.
Netcfg says, eth0 is down. After bringing up with "ip eth0 link up" it goes 
down again.
The eth1 for cablenetwork dont get any ip but it was working before this 
issue...

3.2 : cant enable the adapter, but iam sure that's work before.

4.0 : depend on "obtain ip adress..."
netcfg says, wlan0 is up.

And heres the crazy thing: I just use the USB live release, installed with 
lili. After formating and reinstall, same issue...

Original comment by marcsiebenhaar on 26 Apr 2012 at 3:03

[GoogleCodeExporter]

I have acer Travelmate 4740 laptop in which i installed 
android-x86-4.0-RC2-asus_laptop in which reliance dongle not support please 
guide how to install it so it can work

Original comment by eurja.pr...@gmail.com on 26 Jul 2012 at 11:01

[GoogleCodeExporter]

I have this issue as well. Acer Aspire One 532h.
@comment 7 - command is `if link set wlan0 up' on my system

Original comment by bpwinfrey@gmail.com on 28 Aug 2012 at 3:26

[GoogleCodeExporter]

hola tengo un problema..... yo instale androidx86 en mi netbook acer aspire one 
d257...y me funciona muy bien...pero yo utilizo internet con un datacard (moden 
usb) , y al insertar mi datacard usb el android me dice almacenamiento 
dañado...y no me puedo conetar a internet.... como hago para obtener mi 
conexion 3g de mi datacard de datos  moviles mobile partner en mi android.......

Original comment by Chrisal...@gmail.com on 12 Mar 2013 at 1:33

[GoogleCodeExporter]

este es mi correo gracias... chrisalvir@gmail.com    o    chrisalvir@hotmail.com

Original comment by Chrisal...@gmail.com on 12 Mar 2013 at 1:35

[GoogleCodeExporter]

SOLUTION FOR: ERROR OBTAINING I.P. ADDRESS

If the status of your wifi is always obtaining i.p. address when trying to 
connect to the internet:
1. Go to wifi settings
2. Click the "advance" option andget your MAC address
3. Login to your wifi router system setting
4. Under the wireless tab, you will see a link, button, or option "DHCP 
Reservation" or any option related to DHCP and then add your 
devices'/netbook/laptops mac address...

so that the wifi router will be able to successfully provide you your device's 
own i.p. address and start your internet browsing whatsoever etc.

Original comment by johnwahd...@gmail.com on 21 Mar 2015 at 4:04

[GoogleCodeExporter]

SOLUTION FOR: ERROR OBTAINING I.P. ADDRESS (CONTINUATION.......)

For accesing your wifi routers system setting using a windows pc:
1. Open your web browser
2. On the address bar. Type in the, 192.168.0.1 or for other devices, 
192.168.1.1
3. Prompt your username, password
4. Follow solution in my first comment above.

Original comment by johnwahd...@gmail.com on 21 Mar 2015 at 4:09