Ubuntu Networking :: Wlan Does Not Connect (ubuntu/network-manager Bug?)
Jan 28, 2010
so far i testet 4 wlan cards (prism, ?zytel?, realtek and another realtek) they all work without a problem with kubuntu. but with ubuntu they dont want to build up a connection to my router. it looks like the passphrase is wrong..he asks me after a short time to reenter the phrase. but the phrase isnt wrong(copy pasted) the phrase has some special characters but only '=' and a few '!'. so i doubt that that could be the problem im pretty sure there are more people out there who have the same problem. I hope someone knows a solution :/
edit: i did some searching and found this... seems to be a major problem[URL]...
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Jul 23, 2015
Since a recent update on Stretch, I have been unable to use the network-manager to connect to my home wireless network on my laptop. It was working fine before. I did not change any settings on the WLAN router. I can still connect to other wireless networks at work and university, just not this particular one at home. All other non-Debian devices in my household are still able to connect just fine.While figuring this out, I have tried connecting manualy with ifup but I don't really know how that works. Right now there is only the loopback entry in /etc/network/interfaces.
Below is the output of syslog, when gnomes network-manager is trying to connect, but fails.
Code: Select allJul 19 20:01:57 debian NetworkManager[6705]: <info> (wlan0): Activation: starting connection 'Affenbande'
Jul 19 20:01:57 debian NetworkManager[6705]: <info> (wlan0): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Jul 19 20:01:57 debian NetworkManager[6705]: <info> (wlan0): Activation: Stage 1 of 5 (Device Prepare) started...
[code]...
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Dec 11, 2010
recently I risked a look to the Linux world and I'm happy so far, but now I've got a Problem, I'm unable to solve by myself. I installed Mint (Julia) on my old Laptop to test Linux. The Laptop has a very old PCMCIA WLAN Card with a Realtek rtl8180 chipset. Everything seems to run perfectly so far with one exception: the WLAN doesn't find any Network to connect although the card and the driver seem to be installed correctly.
Here some code from the terminal:
Code:
lspci
00:00.0 Host bridge: ATI Technologies Inc RS200/RS200M AGP Bridge [IGP 340M] (rev 02)
00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M]
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:03.0 Modem: ALi Corporation M5457 AC'97 Modem Controller
[Code]...
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Jul 1, 2010
I recently fixed an annoying problem and I thought it would be nice to share my solution here. The problem was that after a cycle of suspend/resume, Network Manager would only auto-connect to the same network as it was previously connected to. So, for example, if I suspended my laptop at home, and then I went to school and resumed it, it would try to connect to the home network, and then just give up. It would not connect to the school network unless I explicitly told it to.irst, I'll describe the fix. If you're having this problem, you can this. Copy the following:
Code:
#!/bin/sh
case "$1" in
[code]....
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Jun 14, 2010
I have used ubuntu in the past but had a lot of hardware issues with it and unfortunately moved back to windows (( BUT i have tried Ubuntu again and all seems to work great except wifi My wifi connection is sort of working because when i run SUDO IWLIST SCAN it does pull up all available networks. But in the network manager icon on the panel i left click but i see no networks and can't connect to anything. I WOULD LOVE TO keep Ubuntu and use it permanently but I must get wifi working or else this won't be possible.
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Jul 10, 2010
I recently put Linux on a Thinkpad T40 I got. The wireless card works out of the box--I can see nearby networks. However, I can't connect to mine. network-manager would try (spin spin spin), fail, ask for the password, and then go back to the beginning and repeat indefinitely. This happened to me on a different computer, and on that one all I had to do was use wicd instead of network-manager. So I installed wicd, but it's not working either--it hangs at "Obtaining IP address".
I've found many, many threads with people who had the same problem, but none of their fixed worked for me.
I also tried to get wifi going manually, using this guide, but that didn't work.
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Nov 27, 2010
I have just installed opensuse 11.3. I am absolutely new for Linux and for this forum. I have tried to open Network manager to configure my wlan. But its not starting. How to start network manager and configuring my wlan.
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Mar 20, 2010
I'm running Ubuntu Karmic Server with Xfce desktop, the problem is the network manager, it says it is disconnected, even though I am connected to my network and getting an internet connection. It wouldn't normally bother me, but I'm trying to setup a VPN using the network-manager-openvpn plugin. I put in the required details for the VPN connection, but as soon as I tick the "apply to all users" box, the information is lost. The information will remain if I don't tick that box, but it will not connect. when I try to select the VPN connection I just setup, nothing happens.
I've tried the exact same configuration on another desktop, running Ubuntu Karmic with Gnome desktop, the network manager works fine, my ethernet connection is showing as connected, and I can connect to the VPN no problem, the problem lies with the network manager in Xfce. Is there anyway I can get it to show as connected? it wont allow me to connect to the VPN otherwise, it's silly, because that adapter has a full working network connection.
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Jul 23, 2010
I'm trying to use wicd instead of network manager because I want a "no fuss" way to use wireless on wmii. However, wicd will not find any networks unless network-manager has been run and has connected to a network since startup. If it hasn't connected to a wireless network, the wicd will find no networks, and iwlist won't provide a list of networks either.
This seems to mean that network-manager is doing something to the interface when it connects that needs to be done to make it usable, but I'm not sure what it is or how exactly to find out. I do know that the interface (eth2) will not appear in ifconfig if network manager hasn't connected, which I assume means that it hasn't been brought up. ifconfig eth2 up makes it show up, but I still can't connect with wicd. What can I do?
I'm running Ubuntu 10.04, generic 2.6.32-22 kernel, MacBook 5,5 using the Broadcom STA driver. (more details below)
Code:
*-network
description: Wireless interface
product: BCM4322 802.11a/b/g/n Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth2
version: 01
serial: 00:25:00:4b:df:4c
[Code]...
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Dec 26, 2010
i was fed up after i can't connect to wifi using ubuntu. the problem happened after my router is being replaced to a new one because the old one got struck by lightning. good thing i dual-boot my laptop so i can access the internet using Windows 7 now.
i use the default network manager to connect to wifi before, but it all seem to be failed after the replacement of router. i also used Wicd but it failed to connect either. it says in the notification "disconnected: bad password" but the password was right. my wifi used WEP password with open authentication.
i even remove the WEP password and try to connect, but it failed. all i can do is to boot in windows 7 and surf internet there. what could cause this problem? is it the router, the telephone line? i can set the router settings if i want, but i don't know what causes the problem.
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Mar 24, 2010
I followed (or at least tried to follow) tutorials on doing this. I installed network-manager-pptp and tried to configure network manager to connect to a VPN. In the settings when I select MPPE with 128-bit encryption, after I've selected it and applied it, I check the settings and it's invariably unchecked. I tried using KVpnc after getting frustrated with network manager, and I can't seem to get that working either. I've been trying to search for info on this, and I can't seem to find anything on why I can't select MPPE with 128-bit encryption. That seems like it might be why I'm unable to connect to the VPN?
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Jul 2, 2010
I have a problem with network manager. I use Ubuntu 10.04 on a Dell Latitude D530. I used to have the same problem with Ubuntu 9.10 before I upgraded. I typically connect to two wireless networks: HOME and WORK. Both networks are set to automatic connection mode. I am at work, I connect to the network WORK. At the end of the day, I just close the lid and go home. At home, I open the lid and have the following problem: network manager still displays the network WORK whereas it is clearly out-of-range and it automatically tries to connect to it. It does so until network manager asks if the password is correct.
If I want to connect to HOME, I have to tell network manager to do so. Then, I receive a notification that I am disconnected to WORK. Next morning, I go to work, and I have the same problem, network manager tries to automatically connect to HOME. What I would expect from network manager: when I am at home, NM automatically connects to HOME and does not display WORK, when I am at work, NM automatically connects to WORK and does not display HOME.
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Sep 15, 2010
I have ticked the box Connect Automatically in the OpenVPN setup I configured in the gnome network manager but it doesn't connect on startup. It connects perfectly ok if I manually select the VPN but i'd like it work immediately on launch.
I have autologin on Ubuntu but since there is no VPN password to decrypt I don't see why it should be a problem.
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May 1, 2011
I just installed version 11.4 on my system of a toshiba satellite l505d-es5025 64bit.My wlan will not show up at all.I installed ndiswrapper, and all of the wlan from yast.
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Feb 9, 2010
I have installed WvDial (apparently) but it has no icon or launcher to start it by default, how do i get it to run? I also need basic set up how to. I am running Ubuntu 9.10 (Karmic) and network manager doesn't seem to be able to use my modem to connect to the internet (set up wizard works, appears connected, but then I get page not found error). Hence I wish to use WvDial to try to connect instead.
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Apr 2, 2011
This is on Lucid, using a Dell Mini. I installed the required packages for a USB tether to my iPhone. Network Manager recognized it immediately as wwan0, but it doesn't connect. Also, it never asks me for the password to connect to the Personal Hotspot (as it does when I can connect from Windows).
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Apr 13, 2011
I have a 5720 Mini PCIE broadband modem card and though it works, it won't connect automatically in a Ubuntu system. Network Manager says it is enabled when I right click on the icon, but when I do a left click it says it is disabled. I have to right click and disable and then enable before my Verizon connection will work.
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Apr 28, 2011
I have been an Ubuntu user for a year or so. My level is still ultra n00b but I am trying. Whenever I update Ubuntu there is always a WiFi problem, always. So now I am having problems getting wifi to work in 10.10. In Network Manager I can view wifi networks fine but I cannot connect. I tried with wicd also but I got as far as "getting ip" and then it would hang up.
lspci
Code:
Code:
Code:
I am not sure what driver I am using as I don't know how to exactly ID my driver. I know there is a way to ID the driver using airodump-ng but I have yet to find it.
I have a feeling this is a driver issue as one time I was able to establish a connection that then dropped a few minutes later. I have a feeling I should be disabling/removing the current driver and replacing it with ipw3945 or possibly a driver ndiswrapped? The problem is I cannot figure out how to remove the current driver.
I was going to switch back to 9.04 but I thought I would try to manually figure this one out instead of taking the easy way.
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Jul 30, 2010
I am trying to connect my Asus EEEPC to an option icon 431 usb modem.
I have successfully installed the HSO driver however am unable to connect through network manager. I have successfully connected through Rhel Beta 2, Fedora 13 and Ubuntu 9+, however, desperrately want to be able to use centos 5..5
Here's some info up front code...
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Mar 29, 2010
I have searched around a bit for a knetwork manager issue I am having on my opensuse 11.2 32 bit install. My wireless card is an 04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01) I am currently using the Broadcom wl driver
I am on the Internet with this machine as I am typing using the older "ifup" method. I am having great difficulty connecting to the Internet when I use knetwork manger though. The strange part is when I am connected to my router with knetwork manager, I can log into my Router, but I can not get to any web-page/ping any outside address.
so far the best (I was able to locate) advice I was able to get is located in this post. < Broadcom wireless, partchy internet - openSUSE Forums > following a posted how to to disable IPV6 (I suspect this may be the issue??), I was unable to locate modprobe.conf, or modprobe.conf.local, even after I updated via updatdb. I gave a shot at entering in "disable_ipv6=1" into "menu.lst". However, this did not solve my issue with knetwork manager. If my network information is needed when I am "connected" utilizing knetwork manager
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Feb 25, 2010
I have updated the system this morning and the vpn stopped working!It gives me an error: invalid secrets.I use network manager to connect to a pptp vpn connection, I use fedora 12.Does anyone know the problem?
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Sep 15, 2010
I successfully installed openvpn and networkmanager openvpn plugin. Then I successfully added a PPTP vpn connection by networkmanager vpn tab which name is "vpn1". But now I don't know how to connect to this PPTP vpn connection. I tried bellow command but no luck.
openvpn --config vpn1.config
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Jan 22, 2010
I'm using ubuntu karmic and I'm not able to connect to the internet with my reliance netconnect data card using network manager. Other distros like fedora, opensuse n sabayon connected easily with nm. Ubuntu detects the data card flawlessly but just doesnt connect.This problem has been persistent even in previous ubuntu versions, n I used to use wvdial. But downloading wvdial on some other comp with every dependency is really cumbersome.
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Aug 1, 2010
I have just started using fedora 13 and I am not sure if i am in the right area but here goes...today I was online in my fedora 13 partition on my laptop and I had been online for quite a while then I shut down my machine to recharge the battery then a couple hours later I turned it back on and all of a sudden my network manager applet was missing and I could not connect to the internet, I opened firefox and tried to get to my homepage but it basically just told me that I wasnt connected..
I suspected at first for some strange reason that MAYBE it was my NIC so I booted up into my vista partition and low and behold the internet works fine, so the problem is on the linux side, I have tried every command nm-applet but it just keeps saying an instance of nm-applet is already running, I have no clue how to restore the network manager and get my internet back and the only other piece of information I have is that earlier today I did do a bunch of security updates but the internet was working fine all day even after several reboots through out the day.
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Aug 18, 2010
I am trying to connect to a WEP encrypted WLAN without using the DHCP server of the AP. (=giving myself a static IP)
So far i have tried:
Code:
But i cant even ping 192.168.1.1 (Network unreachable error). Is it possible that Ubuntu tries to use eth0 (which was connected to a similar /16 before) to ping 192.168.1.1 or is there somethign wrong with my commands?
Also will an AP allow access to the network although i don't have an IP from its DHCP server?
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Mar 12, 2009
I've FC10 installed. After updating a few days back, I'm unable to use Network Manager to connect to the net through my USB Modem. All the threads I've read say to do
Code: yum update NetworkManager but how can I do it without net connection? Can anyone post the exact link of the Network Manager's latest and BUG-FREE rpm so that I can directly run it?
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May 7, 2011
I have a problem on Ubuntu 11.04 64-bit. The wlan does not connect automatically on reboot, although "Connect automatically" is ticked in network manager. I always have to choose "Connect to hidden wlan", choose my config, enter my password, then connect. Once connected everything works fine. But it's kind of annoying to manually connect each time after a restart.
- hidden SSID from router
- mode -> infrastructure
- connect automatically -> ticked
- available to all users -> ticked
- Encryption -> WPA & WPA2 personal
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May 17, 2011
I upgraded Ubuntu to 11.04 I can NO longer connect wirelessly using my BCM4312 WLAN Card. It connected with no problems before dist upgrade using Ubuntu 10.04. Im really not sure why I cannot connect. I cannot even see my router in edit wireless connections settings. I can however see my neighbours routers who are using WPA2 encryption. But I cannot see my router.
I have uninstalled and reinstalled The Broadcom STA proprietry wireless driver several times using Additional drivers. This did not fix my issue.
I am connected by ethernet at the moment so I do have internet connection.
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Jun 20, 2010
I have a RedHat linux server box connected to LinkSys router through ethernet port. I've assigned a static IP to the Linux box, which is out of range with router's DHCP range.
The Linux box has Apache, JBOSS, SVN and several other services installed, but none of these services are accessible through the WLAN. However, SSH and SFTP are accessible from WLAN.
Another interesting observation is that if I open a browser on the linux box (by exporting the DISPLAY to Exceed on my laptop on the WLAN) and point the browser's address bar to localhost:80 or localhost:9080, then I can access these services!!.. So, I suspect that something is wrong with accessing these services from a client on WLAN and I am looking for a solution for the same.
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Jan 29, 2011
Yhe only ptoblem was that he had forgotten the password to his network. This was really anoying and has happened before sp yesterday i decided to install some kind of WEP cracking tool so that it would not happen anymore.. After using sometime without getting anything to work i found this tutorial: [URL]
and started following it. i only got to the point where he has updated his computer using update manager and is about to patch his wificard. Then i noticed that the network manager for gnome was gone and the virtualbox logo in my top panel was changed to a red circle with a line running through it. I have tried to download network manager from another computer and installing it on my laptop but it needs internet to install. Then i tried to connect to my local network using terminal that did't work either i also tried connecting using a cable but had no luck connecting. The command iwconfig gives me:
[Code]....
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