Ubuntu Networking :: No Wifi/ethernet After Battery Died While Laptop Was Asleep?
Jan 10, 2011
Running Ubuntu 10.04. Networking won't work at all. Used to work flawlessly. Problem is not hardware, because booting windows (vista) on the same machine I can still use networking.
Little story: I Was going into a short trip, then I put my computer to sleep (as usual). Trip took longer than expected and, when I came back, the notebook battery was dead. Charged it, booted the notebook (Dell Inspiron 1525) and now its network won't work at all. After reboot it even ran a filesystem scan, but problem wasn't fixed. The icon on 'taskbar' only says "networking disabled". The ethernet lights won't even light up when I connect a ethernet cable and it won't see any wifi networks. I've tried to fiddle with that little switch which would turn the wifi on and off, but all it seems to do is turn the Bluetooth on and off, as shown by the little Bluetooth icon on 'taskbar' (I've not tested bluetooth, though). I've also tried to plug a external wifi dongle but ubuntu won't even try to install it.
what's happening or what could I do to get my network working? Is there some 'magic' I can type into a terminal window to make this work?
I am using a Fujitsu Amilo pi3560 with a Realtek rtl8172 wireless card, and running the latest driver (rtl8192se_linux_2.6.0014.0115.2010). The OS is Ubuntu 9.10. Everything runs perfectly - when my laptop is connected with the power cord. But when I go battery the wireless disconnects after a few minutes. It then asks for the wpa password, searches for the router, asks again, and so on indefinitely, until I reboot and it all replays once more.
I have an old PowerBook G4 that I would like to use as a 'dummy' computer for learning wireless penetration (WEP/WPA attacks) more effectively. I had been using a wireless router, but I gave it away I can use Mac OS X to share an ethernet connection over wifi, but this is _very_ un-configurable. You get two options only, WEP and a key-length. So, I would like to install someway to make this wireless connection more configurable.
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
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.
Just installed 9.10 followed by a 10.04 upgrade (wouldn't work as a 10.04 clean install). The install and upgrade all seemed to go well.
But now when booting I get a message saying "checking battery state" and then it boots no further. This is a laptop without a battery installed, running permanently from the mains through the charger.
How can I disable this check so that the laptop will still boot without a battery fitted?
getting back to our laptop, the stability window is ~3.2V. Meaning that when you operate the battery above this the electrolyte is oxidized on the positive electrode and reduced on the negative electrode. Remember that we only want to oxidize and reduce the active materials and don't want to do anything else. All these reactions other than the ones we want are called side reactions and these are really bad for the battery. The nominal voltage of a laptop battery is 3.7 V which means that something bad wants to happen as we use the battery.So long story short, stuff (e.g., passive layers and poor kinetics of reactions) happens and things are not as bad as they seem and you can increase the voltage up to 4.2V without bad things really happening. All chargers for Li-ion cells today cut the battery off when it reaches 4.2V. What you have to realize is that at 4.2V, these side reactions are present in finite amounts and start to chemically kill the battery, but its not that dramatic.
Operating to 4.1V makes things better and extends the life, 4.0 V is even better and so on. So why don't battery manufacturers cut the voltage off at, say, 4 V to get better battery life? Because every time you cut this voltage down you decrease the capacity of the battery and its run time. The 4.2V cutoff is a compromise between good run time and decent (read "not pathetic) life.On the other hand, if you charge the battery and then pull the plug (so to speak), the battery discharges some, the voltage drops, and these reactions become less of a problem and your battery life goes up. So the best things you can do is to charge the laptop (or cell phone, camera etc.) and once its charged, pull the plug. Your battery will thank you for it.As a matter of fact, if you own a Lenovo Thinkpad, you can actually change the state of charge to which you charge the battery using the Battery Maintenance utility. You can change this from charging to 100% state (where the voltage is 4.2V) to 90% so that your voltage is less. You lose some energy is doing that, but atleast you can change it to 100% when you need battery power and put it back down to 90% when you can plug in. I wish my Mac has the same feature.
I typically use the battery for a while (say 1/2 hour to 1 hour), then plug it in and wait to fully charge it, then I pull the plug and use it again for 1/2 hour to 1h and then I repeat this. Takes some getting used to and I forget to do this, but I try.
it was working but after i installed updates and rebooted it could not get a ip address seems like strange timing it still registers under ifconfig it is not even working on the live usb anyway i can test to be sure it is the chip?
I have an Asrock A330GC, with onboard ethernet, and an Engenius PCI card for wifi.I installed ubuntu server 9.10 no problems, and it picked up my ethernet in the installation with no difficulties.I couldn't get 9.10 to do what i wanted, so I tried installing 8.4 instead. This however didn't pick up any of the drivers, so i couldn't get online.So i reinstalled 9.10, only to find that no couldn't find network in the installation.Absolutely NOTHING has changed, the ethernet cable still plugged in, and if i plug same cable into my laptop, it works fine.Any ideas people?ifconfig doesn't mention any eth0, just lo, with an ip of 127.0.0.1 and amask of 255.0.0.0 which i'm fairly certain means its dead
I just installed UNR from a usb drive on my hp mini 1030nr. I followed a guide and got the drivers installed from the drive, but they would not activate in the restricted hardware dialog. I tried to run update over wired, but I couldn't get ethernet working. ifconfig -a anly shows lo, eth0 doesn't seem to exist. how to get wifi working?
i have installed 10.10 as a dual boot and when i go to wifi conections everything seems fine when i click on conect to my router it wont conect, i also tried plugin in ethernet cable to router from laptop and still not conecting.
I tryed to get network work like this share internet from wifi (wlan0) to ethernet (eth0).So the internet connection comes from the wifi and we share to other computer via ethernet[URL]But when I restarted my pc then it dont work and network says "wired network device not managed" How can I get it work aigan ?[URL]Now I have anohter problem when I connect autoeth then the wireless network dosent work anymore, I have to disconnect eth0 to have wirelles network working. how can I manage to get the bowh to work?
I am basically wanting to use my Ubuntu 10.10 computer as a router. Note: Before you say just get a router please note that I am poor/cheap. I have two ethernet connections and one wireless connection on my netbook. I want to share the internet connection that is going into one of the ethernet cards through the other ethernet card and the wireless card.
DSL-->1sr Eth --> 2nd Eth (currently works) DSL-->1sr Eth --> Wireless Card (Adhoc) <--(connects with limited connectivity AKA no internet)
The 2nd Ethernet card already has working internet, but when I connect to the Wireless card (through an Adhoc network), it cannot get an IP (I believe).
I have been trying to get my laptop to share its wireless connection to my older, wireless-less, computers through its ethernet port. So far, I have not been able to make it work. As far as I know, what I am trying to do is called network bridging. The method I have been trying so far is to run these commands as root:
I have installed Ubuntu (both 10.10 and 11.04 pre-release) on my laptop but my battery is not recognized and it is detected as a desktop system rather than a laptop. I have tried the cat /proc/acpi/battery/BAT1/state method but the directory doesn't exist. I have tried another guide to paste the battery info into this directory but it doesn't allow me to do that and says that the directory doesn't exist, even though I'm trying to make it. I tried it in root nautilus and even on an install of Lubuntu (with a root file manager) but it still failed to budge. I really don't know what to do as I have tried all the guides on the internet that I could find.
I am trying to get this laptop`s wireless to connect to my router or any wireless connection. It does not have an ethernet port,so it has been tough.I have been reading everything i can,but cant get it to work.Maybe I need a different wireless card or a usb adapter.The one I have is a Texas Intruments acx100.Can anyone tell me if this should work.I have ndiswrapper installed and the windows driver for it but still nothing.
When I select the wifi icon on the panel, it just shows "No network devices available". I know my network can be found when I search with my iPhone, so I know there are networks to connect to. So, I checked the drivers, and it informs me that the B43 and STA drivers are not activated. So thats not a big deal, I guess, but when I use my ethernet cord, my laptop doesn't recognize/acknowledge (I'm not sure what the right term would be)it. I'm fairly sure I can't activate these drivers without an internet connection because when I do try, a message pops up saying "failed to fetch" with some long link.
My only guess is that it could be a hardware problem, but I really have no idea. I guess the ethernet problem is my only real problem. Because after I establish and internet connection the the rest is easy to fix.I'm sure its obvious, but I'll go ahead say that I'm a novice ubuntu user. I've only been working with it for about a week, but I'm learning alot.
so, when i first got my laptop it came with vista and the ethernet worked fine, then when I decided to install Karmic about 9 months ago it still worked fine. After a while the update for lucid came out so I upgraded to that and then the ethernet started getting buggy. It would only work about half the time that i wanted it too and the other half of the time it would just stare at me and not move anywhere. So along with a couple other bugs I decided to format my harddrive and downgrade back to karmic and await the 10.10 release. unfortunatly my ethernet woes carried with me and they still would only show up on occasion. then about half way through my time with karmic round 2 it stopped altogether, and with the upgrade back to lucid it hasn't seemed to solve itself.
I ran through ifconfig -a, lspci and sudo ifup -a but they all tell me that the device doesn't exist.
I have a brand new ASUS EEE PC 900HA with Ubuntu 9.10 installed on it. The wireless hasn't worked yet but the ethernet is fine. I've been browsing the forums for hours to find a fix but now I've installed/queried/removed so many things I'm totally confused.
lspci -v gives me this
Code:
01:00.0 Ethernet controller: Attansic Technology Corp. Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller (rev b0) Subsystem: ASUSTeK Computer Inc. Device 8324 Flags: bus master, fast devsel, latency 0, IRQ 27
Acer 5250-BZ475 laptop, fresh install of Ubuntu 11.04. Boots up beautifully as long as an ethernet cable is plugged in. Otherwise, I get to the login screen and have just enough time to start typing in my password before the entire system hangs hard - no mouse, no keyboard, can't even get to a terminal, nothing. Have to hard power off the machine.
It seems to be a problem with the wireless card trying to initialize, but there doesn't seem to be a bios option to disable wireless on this laptop, so I'm a bit at a loss as to how to fix this problem. By the way, wireless works fine if I boot up with a cable connected - I can see all the wireless access points in my area no problem. I just can't boot without a wired connection, which makes my laptop more or less useless when I'm away from home with it.
I occasionally stay at hotels where I get free wired internet but not wifi, I'd like to use my laptop as an access point so that I can have internet on my Ipod Touch. I know it's possible because after trying unsuccessfully in Ubuntu 9.04 a few times I decided to try it with windows vista and it took me a matter of seconds and both the laptop and ipod touch were surfing the internet. I'd prefer not to boot into windows just for this.
In ubuntu when I create a new wireless network, network manager shows that I'm connected to both the autoeth0 and the wireless network I created but neither computer has internet access.
I have a linksys networkrouter WiFi a laptop Windows Vista an a Laptop Ubuntu.On the vista machine i have 54mb/s on the ubuntu i have sometimes 1 and sometimes 25 mb/s When it was a Windows machine it was also 54mb/s.So y question what can i doo to speed it up ?
Some test results: Windows: Download 1368.2 kbyte/sec Upload 86 kbyte/sec Connection 631 conn/min[code]...
I have a Thomson TG782T, I live with 2 people, I don't want one of them using my internet as i never see any money for it, I don't want to change the WPA, Is there anyway i can just block the one laptop?
I have a laptop with Ubuntu 9.10. And I want to connect it to Internet using wifi. Also I have desktop with Ubuntu 9.10 (another desktop with Win XP, but for some day it will run under Ubuntu too ). I want one of this these desktops to share wifi with laptop. I think that a wifi adapter is a way to solve this problem. I found a D-Link dwa-110. i've read on forums that someone successfully installed drivers [URL]. Is there any other ways to share wifi with laptop (only 1 laptop needs to be shared with)? Had someone connected desktop with D-Link dwa-110 and laptop (as I want)? Both desktops connected to Internet via wire.
I'm having a really strange problem with my wifi connection on my laptop. The ethernet connection works fine and so does the wifi connection - as long as I sit within one meters range from my router! As soon as I take the laptop further away the connection drops. The router is still being found by network-manager and the signal is just below 100%, but when I try to establish a connection it fails.
I'm sitting here on a fresh Ubuntu 10.04 install, and I had exactly the same problem with 9.10. That time I went through a lot of different procedures, and in some strange way the problem was solved. I haven't been that lucky this time though, I've tried reinstalling network-manager, using ndiswrapper, installing the wireless backports package, tried all kinds of drivers.. nothing works.
There shouldn't be any problem with the connection itself; I've had a perfect connection downstairs but now I can't even connect if I stand two metres from the router! Has anyone experienced anything like this and managed to fix it? My wireless card is Atheros AR2413. This is an example from daemon.log
Running 9.10 Ubuntu on my laptop. It connects fine to regular access poitns, but for some reason it won't connect to my android wifi adhoc sharing. I have it as dual boot with Windows and windows connects to it perfectly. From Ubuntu 9.10 it tries to connect... then just disconnects. Would be killer to be able to use it with my adhoc wifi sharing! I prefer my Ubuntu boot, rather than my windows one
I have a Dell Studio 1737 running Ubuntu 10.04 LTS.My WiFi was working fine a few days ago until I tried to boot into another mode that allows me to boot into my other Ubuntu 10.04 or Windows Vista.I booted into that Ubuntu, which I thought had been overwritten when I was having problems and installed the one I am currently using.I shut down since it didn't have anything of any use to me at the moment, and I booted back into this current Ubuntu.Now, whenever I shut my laptop screen and open it back up to login, the WiFi is disconnected.(I was also having this problem on the Ubuntu that I booted into earlier, but that WiFi did this from the start on that one.)
I have an Ubuntu laptop connected by wifi to a Cisco router and a desktopUbuntu PC conneted by wire to the same router. I would like, if it's possible to connect them without using the Internet (I mean what I want it's not just communicate between them using SSH over the Internet, for instance, but also communicate without connecting to the Internet). My DSL connection it's 4 Mb/s while my router can work up to 100 Mb/s so I would like to take advantage of these 100 Mb/s to transfer files between the two computers instead of using 4 MB/s
Ubuntu 10.10 (kernel 2.6.35-23, amd64), Network Manager is installed, the laptop HP 6735s (I am certain that wifi is working, - I can connect to other wireless networks), connected to the Internet through ppp0 (VPN), eth0 looks at LAN interface, WiFi - eth1 (info from iwconfig).
WiFi driver "Broadcom 802.11 Linux STA wireless driverfor use with Broadcom's BCM4311-, BCM4312-, BCM4321-, andBCM4322-based hardware" is installed.
Objective - to create WiFi access point and connect through it to ppp0 with my phone (HTC Desire) or other devices.
My VPN connection (ppp0) and network are registered through my internet provider's script - [URL], not set up not by Network Manager. If I create a new wireless network in NM (point-to-point or access point, IPv4 set to auto) - laptop can not find the network, Internet immediately fall off. Through the manual settings and complex scripts that I found websites and forums I could not get it to work ..
