Ubuntu Networking :: Alfa AWUS036H Adjust Power - Unknown Transmit Power Information
Jun 21, 2010
I am using Ubuntu 10.04 64-bit and I purchased a new ALFA AWUS036H wireless card. I would like to know if this "1Watt" wireless card is configured for full power. iwlist wlan0 txpower results:
wlan0 unknown transmit-power information. Current Tx-Power=27 dBm (501 mW). It appears to me that I should be able to increase the power. "iwpriv wlan0 highpower 1" does not work. Do I need to patch the new default driver that comes with Ubuntu 10.04 64-bit with the aircrack one following these directions:[URL]...? Monitor mode and a injection tests seem to work fine with the driver I have installed.
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Feb 12, 2010
I have Ubuntu 9.10 and I am trying to get my ALFA network adapter to work. It shows a few wireless locations including my brother who lives beside me. He is going to let me use his internet on my laptop. His connection is opened and I can connect to it fine... but no sites load... I've tried about 4 other open networks that I picked up and the same thing... it sometimes loads the first page but then thats it... This is suppose to be the best network adapter on the market for under $100. I have a 5dBi ant and a 2.4ghz 6dBi ant.
Oh yea, I've tired this on two other ubuntu 9.10 desktops and 1 laptop and get the same thing... I am however able to connect to my wireless router and browser the internet... but I will not have internet much longer
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Dec 8, 2010
I work for a firm of solicitors as the IT guy and I have been asked to assess the security of our network. I have recently bought an ALFA AWUS036H USB wireless adapter to help test the wireless networks. We have a few old devices that only run WEP, which I know from the start is bad. I'm trying to use the adapter with aircack. I issue the command:
[code]...
Now I set the adapter to channel 11 using airmon but running iwlist mon0 channel says the adapter is not running on any channel at all. Has anyone else experienced simular issues, and if so how was this resolved?
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Jan 5, 2010
i have ALFA AWUS036H 500mw wireless card which uses RTL8187L chipset. Ubuntu 9.04 and 9.10 come with preloaded rtl8187 driver but they DO NOT work for internet surfing. However they do work with aircrack suit for injecting etc. Specific problem is: They only work with really close ranged AP, anything far and you will have random disconnects or inability to connect. So basically its unstable compared to patched driver.
To get this alfa card working for internet access, the only way currently is to use any LInux distro with Kernel 2.6.30 and lower. Starting from Kernel 2.6.31 they have made some changes to net api structure which wont let you patch the driver with the patch available at aircrack website which is normally used to make this driver suitable for internet browsing. Refer to this thread for more info: [URL]... I am currently using backtrack 4 pre final but i was going to install kubuntu 9.04 till i recieved an email from realtek with a new driver that compiles in kernel 2.6.31. I tested it on Kubuntu 9.10 and it compiled fine but i could not make it run. Under NetworkManagement for Kubutnu, the problem is that it keeps asking for WEP key and gives me the message 'wlan4 failed to connect' instantly after i enter the key, so its possible that its not compatible with NetworkManagement. I havent tried it with wicd yet, it may work........
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Sep 13, 2010
I have Ubuntu 10.04 (32 bits) and a wireless usb adaptor Alfa Network AWUS036H with Chipset Realtek 8187L. After a few minutes connected, the adaptor disconnects and I can't reconnect again. I search this forum but I'm not sure about what to do. Do I need to get and install another driver? I need to use the windows driver?
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Nov 3, 2010
Works fine in Windows 7 on this PC. It's a 2 week old Dell Studio 1749, with no after market software installed aside from Ubuntu (as a secondary OS). When I plug the USB adapter in, the computer locks up. Only while in Ubuntu though. Not sure what the deal is. Chipset is RealTek RTL8187. The adapter is new, fresh out of the box.
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Oct 15, 2010
After much research, I have found the solution to my intermittent wireless problem!Whenever the laptop is plugged into power, wireless is perfect, when I'm on battery, wireless is horrible.Here is the fix:
Code:
sudo iwconfig eth1 power off
Unfortunately, I have to type this in everytime I unplug the laptop.
[code]....
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Feb 9, 2010
Can't adjust brightness of display on buttery power mode Have no controller, such as in the tab "On AC Power"
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Sep 15, 2010
I am running a cli only based laptop for a special project; however, is there any terminal based simple text or GUI applications that will give me power remaining and other information about the battery? Looking for: power remaining, total power, WATTS, AMPS, etc.just the basic items and some other items, nothing to fancy.
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Jun 4, 2010
I use Squeeze with Xfce. My problem is that recently (after the xfce updates) the xfce power manager doesnt react to the power button - it is set to suspend. I dont have gnome-power manager or anything like it running.
If i reboot the computer, the power button will work but if i suspend and resume, it doesnt work again.
The computer is built on an Asus M3N78-VM mobo (2GB RAM/Athlon3200+ single core).
acpi_listen detects the button press.
Any thoughts?
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Apr 4, 2011
I'm looking for any power monitoring devices for Linux to allow monitoring power quality, voltage changes, and outages. This would be for North American three phase power system. I want to have this data fed live to my own program. It should be something much better than just jury-rigging a circuit to fee the power waveform into 2 or 3 audio cards.
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Oct 30, 2010
I had unplugged my PC last night as sometimes there's storms at night this morning I plugged in PC and the power light is blinking and the PC wont come on at all tried different power cord, same result
PC is a AMD athlon64 3300+ 2.4ghz SiS graphics
probably the power-supply or what?
If it is the power supply, how do I find new one as I've never had to replace anything on it or any other PC?
Also, I really need access to the hard drive but it's a weird hard drive and was wondering if I could put that hard drive in my K7 PC, which already has 2 drives in it can a pc have 3 drives? do I have to add/have another ribbon cable for 3rd drive?
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May 28, 2010
On the last release, I had this app installed where I could pick my power profile. I could use power conservatively, and performance would suffer a bit, but longer batt life,or I could have it automatically detect, or I could have the apps use all the power they want and then some. I'm looking to reinstall that app. What was the name of it?I can't remember, and so far, can't find.
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Oct 13, 2010
I recently bought the Alfa AWUS036h which uses the Realtek rtl8187 chipset. I am able to load the module and connect to any network, but its almost as soon as I try to load a page the connection drops. It never stays connected for more than 30 seconds. My other computers using the same adapter in the same spot work fine, unfortunately there not running slackware. I've tried compiling the newest stable kernel and checked the rd.inet1.conf settings.
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Feb 5, 2011
slackware-current kernel 2.6.35.10-smp for instance if i just want to connect to wep ap. i done
[code]...
it says waiting for carrier and it just time out, im wondering why i read somwhere that its not working good with slackware 13.1
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Jun 18, 2010
My problem arises two days ago. Power button of my keyboard has stopped working,why?It works well when I use windows.
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Mar 9, 2010
I'm kinda new to this, but is there any way to send out power-over-ethernet from the Ethernet port on my computer?
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Nov 18, 2010
I have no Wifi on Battery Power?My wifi quits when power cord is pulled? I plug in the power cord and wifi works again?Dell XPS 16 1645 Ubuntu 10.10Much appreciated for a link to solve the problem or instructions
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Dec 23, 2010
When there's a power fail I can't start my pc in WOL but i've to start it manually.there's a soluction?
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Feb 27, 2011
If power fails in the site and generator/UPS has it's last leg of power, how would I know if im away that something's about to go down? Is there a way for me to setup some alert to myself that we have just lost power in the site and everything's running on batteries? Is there a hardware of some sort that I can setup to send sms/call alerts to certain admins?
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Apr 15, 2009
When in my Fedora 10 I power off the system, by using the gnome icon or even the command line "poweroff", it shut down the machine and power off it as expected - EVEN THE NIC. I can see its led is off ! This happens when I put the machine in hibernate mode too, but not in suspend mode. When I power on and and power off it just after the POST messages, when grub is waiting a key to select an option, I can see the NIC's led is still blinking at each second or so. When I power on the machine and select windows (dual boot system) and then power it off, it power off as expected, I mean, it leaves the NIC on - the led blinks even with the machine powered off. As result, I can't wake up my machine remotely by using Wakeup-On-Lan since the NIC is powered off by Fedora.
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Feb 11, 2010
Anyone have solutions for this problem: Can not establish or re-establish wireless connectivity while on battery power. Below are specifications
[Code]....
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Sep 27, 2010
I am using a Linksys wpc600n wireless card that works fine in windows xp, but will not even power on in ubuntu. I tried to use the pccardctl command to get the card to turn on but it still does not turn on.
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Nov 17, 2010
I have a Dell 1501 Inspiron laptop and have swapped out the broadcom network card for an intel 4965AGN so I can use n-speed with my new router.Everything works sweet except my laptop now crashes if I try to run on battery power.It boots up to the login screen, but once I enter password and login it crashes, just get grey screen and everything locks up. Everything works fine on mains ?It's not a major problem for me as I don't use the laptop "out in the wild".
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Jan 29, 2011
just installed Ubuntu on my Macbook Pro and im loving it right now, but whenever I disconnect from the power source and run from battery, my wifi Internet slows down to a crawl. As soon as i plug the power back in, the internet is back to normal.
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Feb 10, 2011
I am using ubuntu 9.10. in my area there are frequent power outage. So my wifi get disonnected as the router stops. And it asks for security code. So when power comes the router starts but i have to manually write the security code and connect to wifi again. how i can make the computer to auto connect to wifi after power comes.
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Mar 31, 2011
I've got a Toshiba Satellite with the Realtek rtl8188ce network card. I've successfully downloaded, compiled and installed the driver and it works great except when running the machine on battery power when it constantly disconnects, like every minute or two.
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Jul 29, 2011
I have a wlan0 which is Atheros AR928X and wlan1 which is Alfa AWUS036H
I thought I could set iwconfig wlan0 txpower [higher than 20] but any value more than 20 results in:
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device wlan0 ; Invalid argument.
I get the same error for wlan1 when trying a value higher than 27.
Is there a way of increasing the TX power and if not then why not?
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Sep 1, 2011
I am running Ubuntu 11.04 32Bit on an ASUS Eee PC 1015PX. I have found a strange anomaly concerning wireless connection when running on battery power. I have been experiencing very slow performance when connecting to my home NAS and also the internet through a wireless connection when using my netbooks internal wireless card (Broadcom Corporation BCM4313 802.11b/g/n (rev 01)) when running on battery power. The card works fine and connects at full speed when running on mains power but as soon as I switch to battery power the card connects to the internet/network fine but the connection speed is very slow indeed. I am using the Broadcom 802.11 Linux STA propriety wireless driver.
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Jan 16, 2010
How do I set the network adapter power to maximum? In windows, this can be easily set under device manager --> hardware --> ..power management.
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