Ubuntu Networking :: After Upgrade To 10 From 9.x Wireless Fails

Nov 23, 2010

I upgraded from 9.x to 10.10. Under 9.x my wireless usb dongle worked correctly. After upgrade it does not. I checked the dongle on another machine and it works correctly. I inserted a usb memory stick and the system found it as a drive correctly. I assume from this that both the dongle and usb port are ok. The wireless device is a D-Link G122 A2 which is on the supported list (it ran out of the box on 9.x). The link light did not even come on. So I installed ndiswrapper and the windows D-Link driver (note that this was not needed in 9.x). Now the link light comes on and the wireless router is found but the unit will still not connect.

The log file entries on dongle insertion are as follows:

It appears that the problem is with wlan0 not being ready. If this is the case how do I make it ready?

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Ubuntu Networking :: Networking Widget Fails To Enable Wireless Card / Fix It?

Apr 30, 2011

I just upgraded to natty last night, and everything is working fine except for the network manager. I can enable and configure the wireless card via bash, but the network manager widget will not manage the wireless card.

When I first boot up, the "Enable wireless" check box is greyed out. After I enable the card via the terminal, the "Enable wireless" check box becomes ungreyed, but every time I click it, it instantly unchecks itself. I feel like Currly from the Three Stoogies. Check, uncheck, Check, uncheck.. "Slaps face repeatedly."

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Ubuntu Networking :: Printer Fails To Mount After Upgrade?

May 28, 2011

I have no problems accessing files, with the windows shares. The only problem is getting my printer to mount. Here is the trouble shoot log, I didn't fine the problem till, I tried to print something.


Page 1 (Scheduler not running?):
{'cups_connection_failure': False}
Page 2 (Choose printer):
{'cups_dests_available': [], 'cups_queue_listed': False}


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Ubuntu Networking :: Sprint Merlin EX720 Fails After Upgrade?

May 27, 2010

I have a Dell 1525 laptop with an upgrade from 9.10 to 10.04 currently installed. My Sprint Merlin EX 720 auto connected through NM 0.7 /Karmic 9.10. After an upgrade to NM 0.8/Lucid 10.04 NM hangs and then disconnects. The card works perfectly after the upgrade when I use KPPP. I would like to get the card to be recognized right off the bat in NM like it did before.

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Ubuntu Networking :: Wireless Connect Fails At WEP Key?

Oct 19, 2010

Dell mini 10 with ubuntu 10.04/windows xp, connecting to linksys wrt54g. Connected when I was using 9.10, has worked for several months since 10.04 was installed. Still works if I boot XP, but, when booting Ubuntu, router won't accept the passkey which I obtained from my wired computer. I've glanced through a bunch of posts and see several which are close, but no solution. Only cause that I can think of might be a shut down while connected. I say that because it was working and I had no need to change settings.

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Ubuntu Networking :: Wireless DNS Resolution Fails?

May 24, 2011

When connecting to any wireless network, DNS lookups completely fail to work. Over a wired connection, there's no trouble.

I can ping machines by IP address, and I can dig and nslookup domain names using the DNS servers assigned by Network Manager or by myself. When I try to ping by domain name, however, nothing happens. Similarly, I cannot ssh into machines by domain name or browse the web.

My wireless card (Intel 4965AGN) is managed by Network Manager. The issue is seen regardless of whether DNS servers are obtained automatically by DHCP or assigned by me through Network Manager. This started about a month or two ago while I was using Maverick and presents again with Natty. I dual-boot Natty and Windows 7, and everything works fine in Windows.

Somehow, this seems to be linked to Nautiluswhile connected to a wireless network, Nautilus won't open, my desktop icons won't show, all that jazz. If I'm connected to a wired connection at login time, Nautilus works fine.

I've managed to workaround the browsing issue by setting up an ssh tunnel through a machine at school and forwarding Firefox's DNS resolution through that tunnel. But I'm at a loss as to how to resolve the core problem.

Here's some diagnostic info. I've modified my IP and hardware addresses below.

$ ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:1f:3b:27:be:35
inet addr:xxx.xxx.38.96 Bcast:xxx.xxx.39.255 Mask:
inet6 addr: fe80::21f:3bff:fe27:be35/64 Scope:Link


I've tried all the basic steps killing and restarting Network Manager, renewing my DHCP lease using dhclient, restarting /etc/init.d/networking. I'm at the end of my rope, though, and ready to reinstall. I'd be much obliged if anyone can think of a less "Microsoft" solution.

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Ubuntu Networking :: RTL8191SE Wireless Connects But Fails?

May 24, 2010

I have a Compaq Presario CQ42-195TX laptop with Ubuntu 10.04 (64-bit) installed on it and fully updated. It has a Realtek RTL8191SE wireless chipset which I am having trouble with - its wired connection is working perfectly.After starting up, I am able to see and connect to wireless networks. Once connected, the wireless functions correctly for a very brief period (under 10 seconds) in which I am able to access the Internet and so forth. The connection then stops working - although it doesn't get disconnected. When I say it "stops working", I mean I can no longer access the Internet and trying to ping the router gives me a "Destination Host Unreachable" error. If I disconnect from the network I cannot reconnect, nor can I connect to any other network.- though I can still see the list of available networks.

I thought that maybe this was a 64-bit issue, but I tried the Ubuntu 10.04 32-bit live CD and experienced the same problem.Please note that while this thread is about the RTL8191SE chipset, the RTL819xSE chipsets all use the same driver.Below are the results of various commands while connected to the network but after the connection has stopped functioning correctly:lspci -nn | grep "Realtek"

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:8171] (rev 10)
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast


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Ubuntu Networking :: First Attempt To Connect To Wireless LAN Always Fails?

Jun 24, 2010

The nm-applet starts automatically as it should, and also tries to connect to the local, wireless LAN, but always fails its first attempt. If I click the icon and ask nm-applet to connect again, it always succeeds.

The server, running the wireless LAN, never sees the first attempt to connect, so no wonder this attempt fails. But it would be nice to make it succeed!

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Ubuntu Networking :: Wireless Can See Networks But Fails To Connect

Jun 30, 2010

I have an Atheros AR242x card. It can see my wireless network (WPA2). When i attempt to connect to the network it asks for the WPA2 passphrase. After entering the password it begins connecting but hangs up for about 3 minutes before saying wireless disconnected. The wireless worked for one day on a fresh install (Ubuntu 10.04)and then started doing this.

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Ubuntu Networking :: Wireless Fails After Reboot / Suspend

Dec 30, 2010

I recently installed Ubuntu 10.04.1 LTS and have it set to dual-boot with windows 7 on my gateway tablet PC. Since installing, sometimes when I suspend or reboot, my wireless does not work. To be more clear - it is working fine, then I either suspend/reboot, then I come back and no wireless networks show up at all. I can still connect with ethernet cable though. I can solve it by rebooting multiple times (usually around 1-5 times) and then it (magically) seems to work again. I have also tried switching from network-manager to wicd, but the problem persists. With both network-manager and wicd, I've tried simulating a reboot for the wireless by using the command 'sudo modprobe -r iwl3945 && sudo modprobe iwl3945' (network-manager) and 'sudo /etc/init.d/wicd restart' (wicd), but these do not seem to work.

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Ubuntu Networking :: Wireless Suddenly Fails / Networks Still Visible

May 19, 2011

I'm having a problem with my wireless, and after searching the forums for a couple of hours, I suspect it's time to speak up.This morning, wireless was up and working fine on several networks. My laptop froze around noon, and I was forced to do a hard reboot. After restarting, the Network Manager will not connect to any wireless networks, which are visible. Wired connections work fine. I've tried multiple networks, and although I can see them, I cannot connect.

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Ubuntu Networking :: Fails To Connect Vostro 1720 To Wireless Router?

Oct 7, 2010

I'm trying to find out why the wireless access point at work most of the time won't let me connect to the network. I'm using Ubuntu 10.04 on a DELL vostro 1720. The router model is D-LINK DIR-655. lspci gives me: Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01), and I'm using Broardcom STA drivers.

If I try like 10-20 times to connect I will often finally get connected and once connected everything works fine for the rest of the day. The only router I'm having this problem with is this one. In the log below, the last lines is a connectionattempt that succeeded and all the lines above those are several attempts that failed. It seemes like there is some kind of timeout issue but I'm not sure what and how to fix it.

The syslog for the connection attempts are (I have marked out MAC adesses and public ips with *):


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Ubuntu Networking :: Can't Get Wireless Connectivity Because The STA Driver For Bcm4312 Fails To Activate

Nov 13, 2010

I have just upgraded to 10.04 and can't get wireless connectivity because the STA driver for bcm4312 fails to activate. Does this sound familiar to anyone? I had had similar problems in 9.10 and tried to install bcmwl-kernel-source which apparently caused errors in the upgrade process. Not sure if this is part of the problem.

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Ubuntu Networking :: Dell Inspiron 640m Wireless - Fails To Connect

Jan 22, 2011

Dell Inspiron 640m laptop, running 10.04. It previously connected via wifi & now fails to connect, although the wireless indicator shows a connection. Connection via ethernet works. Below there's some information that looked like might it be useful to diagnose the problem based on other posts in this forum.


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Ubuntu Networking :: Wireless Rt2860 Fails To Resume After Suspend (11.04, Natty Narwhal)

May 6, 2011

I've been happily using this lappie with LTS but wanted to try out 11.04. It looks great but wireless has been an issue:

1. No wireless during install
2. Had to manually blacklist the rt2860pci etc modules
3. Wireless still not resuming after suspend

05:00.0 Network controller: Ralink corp. RT2860
Subsystem: Ralink corp. Device 2790
Physical Slot: 0-2
Flags: bus master, fast devsel, latency 0, IRQ 18


The latter manual mod improved things slightly but still no cigar

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Fedora Installation :: Upgrade RH9 To F10 - Install Fails - Installer Fails Media Check Due To "errors"

Jan 23, 2009

I am trying to upgrade RH9 to F10. I have downloaded dvd iso image i386. The SHA1 integrity check passes. The installer fails media check due to "errors". I did an independent verification of the DVD and zero errors found. Download was from Fedora's own torrent, so files should be verified anyway. If I bypass the media check I get the message : Running anaconda the Fedora system installer - please wait.....


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Ubuntu Networking :: Acer Aspire One D250-1958 W/ AR928X - No Wireless - Netbook Picks Signal - When Provide Key It Fails To Connect

May 13, 2010

I have a new Acer Aspire One, model D250-1958. It uses the Atheros AR928X. I've tried Ubuntu Netbook Remix 9.10 and Ubuntu Netbook Edition 10.04, as well as the conventional Ubuntu. Everything works beautifully, except no wireless. The netbook picks up the signal, but when I provide the Key it fails to connect, and eventually prompts me for the key again.

I've tried to research this on my own, but haven't found a solution. In particular, the solution reported by narnie for his Acer Aspire One D250-1584, <HERE>, didn't work for me.

I'd really like to get this working. The netbook will be much less useful if it can't make use of our wireless router.

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Ubuntu Networking :: Wireless Gone After Kernel Upgrade?

Jan 20, 2010

I am writing this using the 2.6.31-17 generic kernel after rebooting and selecting NOT to use the 2.6.31-18 kernel which was just installed. The newer kernel would not recognize/activate my Atheros AR2418 wireless adapter and, when I connected to the ethernet and did updates, there were no hardware drivers available. I haven't needed proprietary drivers since I upgraded to 9.04 and 9.10 works fine with older kernel.

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Ubuntu Networking :: No Wireless Connection After Upgrade To 10.04?

May 5, 2010

NOTE: My upgrade wasn't smooth. Now everything is extremely slow. However if I boot from the disc to try without installing, the connection problem is still there. There is an exclamation mark on the connection applet, right clicking shows that Enable Wireless is unchecked and unclickable. I've included outputs of common network commands which might prove to be useful.

[~] ifconfig
eth0 Link encap:Ethernet HWaddr 00:1e:33:60:f0:3c
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0


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Ubuntu Networking :: Wireless Broken After Upgrade To 10.04?

May 10, 2010

I have a thinkpad using the iwl3945 driver (Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks).

This worked flawless until I upgraded to 10.04. Now after a while my connection drops. Syslog is appended.

May 10 20:16:04 gimli NetworkManager: <info> Activation (wlan0) starting connection 'Auto my-network'
May 10 20:16:04 gimli NetworkManager: <info> (wlan0): device state change: 3 -> 4 (reason 0)


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Ubuntu Networking :: Unable To Use Wireless After 8.10 To 10.04 Upgrade

Nov 28, 2010

I have an out-of-the-box Belkin G wireless router. I also have a Linksys USB adapter on a particular box. When I run the Ubuntu 8.10 live CD on that box I can see the router's SSID, I supply the password, and all is fine. I think that rules out any problems with the router or the ISP.

When I run the Ubuntu 10.04 on that same box I can still see the SSID but when I try to connect to it the DHCP fails. Checking the system logs I see the DHCPDISCOVER entries but no corresponding DHCPOFFER responses. So this seems on the surface to be a DHCP problem. To get around this I tried to edit the connection to use manually supplied settings. On the 8.10 system I supplied:



and again all worked just fine. But when I supply the same values to the 10.04 system it does not work. Even attempts to ping the router ( fail. So if this fails then perhaps the problem is more fundamental than DHCP? I have tried searching the net for quite a while and found a number of similar problems, but clear solutions seem to be lacking (or I haven't come across them). One common suggestion is to blacklist the ipv6 module. I tried that and it seemed to have no effect. Since this worked so well in 8.10 and doesn't work in 10.04.

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Ubuntu Networking :: No Wireless After Unity Upgrade / Get That?

Apr 30, 2011

After upgrading from 10.10 I now have no wireless activity. Everything was great with 10.10 by the way. I have a dell inspiron 1520 with a Dell wireless 1390 card and broadcom 440x integrated controller.
I have seen other threads that are to complicated for me to follow, I would just love for my wireless to work and can follow basic instructions if anyone can help.

I just spent the last 6 days in Florida on business while the tornadoes ravaged my homeland in Alabama and turned alot of people on to Ubuntu. Everyone that walked past my laptop wanted to play with it and asked what it was.

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Ubuntu Networking :: No More Wireless Upon Natty Upgrade?

May 8, 2011

I just updated my work laptop to Natty: perfect. My home server: perfect. My oldish home laptop: no more wireless. [I use wicd instead of Knetwork (or whatever it's called) because I want a permanent connection no matter the user]

I have a D-Link DWA-645. I get the whole stage: connecting, authenticating, etc... and bad password at the end. The password is correct (hasn't changed during upgrade). I also tried disabling WPA and it still won't connect. That's wlan2.

I also tried with an older PCMCIA card that _used_ to work on ubuntu 9, but stopped on version 10: a D-LinkDWL-G650. It doesn't even show up as wlan0 as it used to. I also tried with a USB-wifi DWL-G122 which has always worked on every version of Ubuntu [I don't normally use it because it's not practical on a laptop]. I see it as wlan1, but same thing: won't connect. Note that like with wlan2 I can scan for networks and see several around. For instance:

$ iwconfig
IEEE 802.11bg
ESSID: off/any
Mode: managed
Access point: not associated
Tx power: 20 dBm
Retry long limit: 7


Some more info: the access point works fine, I can connect with another device. The driver in use by Ubuntu is ath9k. Using KnetworkManager instead of wicd doesn't change anything.

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Ubuntu Networking :: Wireless Card Undetected After Upgrade To 9.10?

Jan 25, 2010

As an introduction to the problem I'm having: For a long time, I've been on 9.04 and my wireless worked quite happily. Then when I upgraded to 9.10, to my despair I found that my laptop no longer detects my wireless driver! Before I go on, I should also say I'm rather inexperienced with Ubuntu in general, despite having used it for quite some time.

Anyway, onto the informational part: I'm using a Compaq Presario CQ40. According to lspci, my wireless network card details are as follows:

03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
lsusb shows the following:
Bus 003 Device 002: ID 03f0:171d Hewlett-Packard Wireless (Bluetooth + WLAN) Interface [Integrated Module]


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Ubuntu Networking :: USB Wireless Stops Working After Upgrade?

Feb 10, 2010

This should be easy for the Ubuntu Gods to sort out:

I have a Sabrent USB 802.11N adapter. (I am using 64-bit Ubuntu in all below)

I plug it into a 9.04 box and it works fine. Plug it into a 9.10 box. Network manager sees it and can attach to the network, but has 0% signal strength, no internet.

Rebuild the 9.04 box with a fresh install to 9.10. 0% signal, no internet. Try 10.04 Alpha 2, 0% signal strength, no internet.

Rebuild same box down to 9.04. Works perfectly. 100% signal strength. I do all updates and then the upgrade to 9.10 using the USB. Everything works fine until the reboot. Then, USB connects, but 0% signal strength, no internet. Oh! ifconfig says the wlan0 interface is up, but it has a random ip address.

I don't mind using 9.04 because for the forseeable future, the box is just going to count aliens for Seti, but my wife wants it off the counter and I would like to upgrade someday.

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Ubuntu Networking :: Wireless Broken After Upgrade To 10.04 And After Reinstall Of 9.10

Jun 9, 2010

I recently upgraded Ubuntu 9.10 to 10.04 and my wireless stopped working. It can detect that there are networks around, what their signal strength is, and then try to connect to one, but it just keeps connecting. After around 5 minutes, this stops and nm-applet says no network connection.

After I try to connect, dmesg is spammed with hundreds of the same message. I can not post these here, as I am writing from a different computer and I have no internet access from my main computer.Also, there is nothing in interfaces.conf other than lo. For some reason, my card is referred to as both wlan0 and wmaster0, with this changing depending upon where I look.Most interesting of all is that, even after I reinstalled 9.10, wireless is still broken, even though it wasn't before. It also used to work under liveCD.

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Ubuntu Networking :: Wireless Adapter Not Working After 10.4 Upgrade?

Aug 7, 2010

I upgraded to Ubuntu 10.4 on my Dell Inspiron 6400 yesterday (32-bit). Everything was running great, but when I turned it on today my wireless adapter is no longer working and the hardware switch doesn't do anything. It's working in Windows fine so it can't be the hardware.Here is some information:

Adapater name: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

wlan0 IEEE 802.11abg ESSID:off/any[code]....

Restarting the network with 'sudo /etc/init.d/networking restart' didn't work.I've tried Ubuntu several times before but usually there is one small issue which makes me go back to Windows. I love 10.4 so I hope I can get this working so I can stay on Ubuntu!

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Ubuntu Networking :: Weak Wireless Signal After Upgrade?

Sep 7, 2010

After I upgraded from 8.10 (or 8.4, I'm not sure), the wireless signal is very weak:

~$ sudo iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:"mina"


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Ubuntu Networking :: Wireless Internet Gone Since Upgrade To Kubuntu 10.10?

Nov 6, 2010

Since I've upgraded to Kubuntu 10.10 I've lost my wireless internet. In Windows 7 everything's fine, but in Kubuntu wicd keeps giving a "Unable to get IP address message".

Here's some output:

dmesg | grep wlan0
wlan0: associate with **:**:**:**:**:** (try 1)
wlan0: RX AssocResp from **:**:**:**:**:** (capab=0x411 status=0 aid=2)
wlan0: associated
wlan0: deauthenticating from **:**:**:**:**:** by local choice (reason=3)


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Ubuntu Networking :: Unable To Connect (wireless) Since Upgrade To 11.04

Jul 19, 2011

What has changed to the wireless function and possibly the use of the ndiswrapper in 11.04.

I originally install ubuntu 9.10 and immediately upgraded to 10.04. I have just now decided to upgrade to 10.10 and then to 11.04. Everything went ok and all still worked fine up until the upgrade to 11.04.

I've checked my settings and they are fine. The power light is still on my wireless card but no connection?

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