Ubuntu Networking :: NetworkManager Can't Connect After Disconnect / Why Is So?
Jan 18, 2011
I've simple PPTP connection in NetworkManager that is build in with ubuntu, once I disconnect the connection [to change IP or so] the connection won't establish again...
I'm getting a libnotify popup that says "Connection failed because timeout"
I'm getting a good IP, I just can't connect again after 1 disconnect...
Any idea why?
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Jan 19, 2010
I am checking something out in my connection and i just wanted to ask, is there a way to auto-disconnect and connect from the internet, for example say I want to disconnect now and reconnect to the internet in 0.05 seconds, is there any program that does that?
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May 15, 2011
what is the command in the terminal to connect to and disconnect to interneti have mobile broadband usb modem
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Jun 26, 2011
I was happily running Ubuntu 9 but since I cannot get security updates for it anymore I had to upgrade to 11. Now I'm on Natty, and the "NetworkManager" apparently cannot deal with my latop's wifi card which worked fine for years under ubuntu 9. The laptop is a Dell latitude D610 and the card is an intel ipw2200 minipci. I used to just run /etc/init.d/network restart after I logged in to get the wireless to come up, if it failed by itself, but now I get a message that that's deprecated. Nice.
I'm running WPA. If I don't create a wireless configuration in the network manager, wireless never connects. Ever. If I do create a configuration, the connection comes up for about a minute, and then drops. And then comes up. And then drops. And then comes up. And then drops. It's insane. Also, I get a series of "Auto <ssid>" entries in the NM settings area.I dug around in /var/log, but all of the wpa_supplicant logs are of size 0, except the gzipped backups, which are all size 20. Go gzip. The syslog has some messages in it about 4-way handshake failed, and association taking too long, but since the laptop has no network connection I don't have an easy way to post those here.I just want the wireless to come up, by itself, when I turn on the laptop like it used to. I don't want to have to deal with retyping the (long and complicated) WPA password every time I wake up the machine, nor deal with the "keychain." How do I get there?
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Dec 9, 2009
I'm using CentOS 5.4. I want to set-up a PPTP connection (I'm the client). I installed the NM pptp plugin from EPEL's repository. I have configured my PPTP connection in the NetworkManager applet but now I don't know how to connect to the server, I mean, there's nothing like 'Connect now'.
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Feb 7, 2010
I'm running ubuntu 9.10 with the latest networkmanager (from ppa)I thought this could be wrong credentials setting, so i've tried a huge amount of setups (user: phonenumber, password: phonenumber, avp:telenor, seems to be the general consensus for how it should be)Is there something I'm missing or is there any way I could tail the output as NetworkManager tries to connect (hopefully seeing something like "wrong password" etc.)
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Feb 3, 2009
I loaded F10 up on my laptop a few nights back. NetworkManager connects via Ethernet just fine. It will also connect wirelessly, but only when security is disabled. I've been using 128-bit WEP.
When I try to connect using security, this is what appears in the log:
Code:
Jan 29 21:07:17 localhost NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jan 29 21:07:17 localhost NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
[Code]......
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Jan 1, 2011
Running CentOS 5.5. NetworkManager is able to connect to wifi after logging in as root in the GUI and entering password to unlock keyring. What do I need the change to get NetworkManager to connect the wifi at bootup?
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Jul 27, 2010
i have added a vpn connection on my Lucid desktop machine, but every time i try and connect, it fails. I also have the same, identical vpn connection on my karmic install on my laptop. everything works perfectly on Karmic, but Lucid is having problems. I have followed identical steps for creating the vpn connection on both machines: vpn connections can be made in 2 ways, the first is through the network manager, but trying to connect through the nm-applet returns an error about vpn failing to connect and "no valid vpn secrets".
I suspect this is at the root of the problem. The only way for my Lucid machine to successfully connect through the command line is if I run the openvpn command under sudo.
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Oct 15, 2010
I have a ZTE 3G USB modem (MF645).
When I plug it, 5 devices appear: /dev/ttyUSB[0-4]. The modem device is /dev/ttyUSB2, and I can successfully connect wvdial on it.
NetworkManager detects the modem, however, it tries to connect to /dev/ttyUSB1 instead, and fails.
How does NM decides which device to connect to?
Is it possible to instruct it to connect to a specific device?
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Jul 9, 2011
I cannot connect my Dell Inspiron 1300 through the NetworkManager "wired" connection, when I try to go direct to the cable modem. It fails to connect.
If I connect the cable modem to my (linksys WRT54GS) wireless router, and then connect my laptop to a wired port in the router, it connects in seconds, successfully.
This has happened to me 2 other times, when I tried to connect my laptop to a client's cable modem, because my client did not have a wireless router available, in their home.
My wireless works fine. This has me perplexed. I'm using Ubuntu 10.04 LTS and NetworkManager Applet 0.8
I've tried some things to see what is going on, such as "ifconfig" "dhclient" as well as modifying the "Auto eth0" parameters and adding my laptop's MAC address, etc. Results were no fix or solution. I feel like I'm headed down the wrong road. Would someone set me straight? I have a feeling this is simpler than I think.
Do I have to actually reset my own or someone's cable modem to get this to work? I don't want to do that unless there's no other way. Is there? Let me know what commands I can or should run.
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Dec 24, 2009
After some wonderful days with fedora with my CDMA mobile internet connection (the only connection where I live) NetworkManager can't connect anymore.
I tried to delete the settings and rewrite them without success.
I have A Novatel Ovation U720 CDMA/EDVO USB modem.
I can connect with wnXP and kubuntu, but can't connect with fedora anymore.
I wish to make the definitive move from kubuntu to fedora... but I should wait.
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Jun 23, 2010
have to connect to it manually every time i log in where i'll get prompted for the root password to connect.
things worked fine on F12.
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Mar 3, 2010
The auto connect feature of NetworkManager Applet (version 0.7.997) isn't working on my system. If the WiFi connection dies, Network Manager doesn't detect that the connection has been lost and try to reestablish the connection. I have to manually click on the WiFi hotspot to reestablish the connection. This appears to be the case both while the computer is running and when I first boot it up (i.e. when booting, if the first attempt at establishing a WiFi connection doesn't succeed, Network Manager doesn't retry or try another hotspot).Is this "normal" behavior for Network Manager? If not, does anyone know a fix? Here's some more info about my system:
Computer: Dell Inspiron 1318 laptop
WiFi Chip: Broadcomm BCM4238
Kernel Version: 2.6.31.12-174.2.22.fc12.x86_64
[code]....
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Mar 13, 2011
I'm getting a timeout error from NetworkManager when attempting to connect to my router/firewall.
Excerpt from /var/log/messages attached.
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Jan 19, 2010
I am checking something out in my connection and I just wanted to ask, is there a way to auto-disconnect and connect from the internet.For example say I want to disconnect now and reconnect to the internet in 0.05 seconds, is there any program that does that on Fedora Linux?
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Mar 14, 2010
Recently installed Ubuntu 9.10 on laptop - new partition. Have PC running XP with internet connection. I have a satellite connect from Germany. I live in Turkmenistan.I know all IP addresses, subnet mask, Default gateway, etc. Can someone help configure internet on laptop w/Ubuntu? I am not the fastest ball down the alley but I shouldn't have too much problem with the terminal. Just be gentle. I just completed a pppoeconf search and was informed something or another couldn't be found. It's a little frustrating because I need to disconnect internet cable from PC and connect to Laptop. let me add that I do not have an internet user name or password "supplied by ISP". But I hooked up connection OK on XP.
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May 7, 2010
My wireless seems to be fast for a good 30secs then bang takes good while to load the next page almost as if it's disconnecting and then reconnecting/scanning reconnecting. Why cant it stay connected. I have WAP PSK security here is my network setting please let me know if I should change any of them:(side not is there a way to fix this problem occuring so frequently it says on the wiki that it should only occur once in a whilce https:[url].....
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Jan 28, 2011
I run skype, I have to connect/disconnect at least 3 times for the other person to be able to hear me , not see, just hear. and very often during this process skype crashes. and the video quality is just terrible compared to when i use to run skype on windows from the same machine. I ran skype from the terminal and im just wondering what all this output means
[Code]...
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Oct 14, 2010
just did a clean install and update to Maverick, and found that empathy won't connect without internet connection managed by networkmanager (I'm using wvdial to connect to the internet since networkmanager doesn't recognize my modem). it keeps saying 'Offline -- No Network Connection' unless I deactivate and reactivate the account. It's kinda annoying.
for Lucid, there is a simple fix for this condition, [URL]... but now, there is no entry for empathy in gconf-editor after I did the Maverick fresh install.
is there anybody have the same problem and know the solution? I can just install pidgin, but I think it is better to not having redundant apps installed.
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Jan 9, 2010
I am experiencing troubles when connecting to my new private network under Linux (works fine with Windows). I cannot get an ip address and the logs tell me a bit more, but I would like to know how to proceed to resolve this issue. My network adapter is an Intel Wifi Link 5100 using the iwlagn driver. Connecting to other WEP APs usually works flawless, it's the first time my system won't connect at all to this particular WEP encrypted access point.
Logs: NetworkManager: pastebin - collaborative debugging tool
wpa_supplicant: pastebin - collaborative debugging tool
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Mar 7, 2011
I have installed an OpenVPN server on my OpenWrt 10.03 router [freshly flashed]:
[URL]
It seems "ok".
I connect my pc to the lan port of the router, and i want to try it out. I'm using Fedora 14 with GNOME. In the NetworkManager applet i set these things: this and this. Ok!. i try to connect, but it fails. Here are the logs: [URL]
one important thing: my routers [the one with the openvpn server] ip address is 192.168.1.2, and i didn't had to write it nowhere. so how could the networkmanager applet know the ip address of my openvpn server? i think this is the problem, but i just can't find where to write 192.168.1.2
p.s.: yes, i tried to google for: "No server certificate verification method has been enabled." but i didn't find a thing, and i'm trying for hours now... :
p.s.: if i [on the router]:
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
[Code]....
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Mar 12, 2011
I've just upgraded my netbook from Jumping Jalopy, was it? to Karmic Karla 9.10 and I was obviously remiss in not taking note of the various sub-programs, libraries etc, that it was deleting. Now NetworkManager doesn't connect to my wi-fi whereas before it picked up immediately and was as solid as a rock thereafter. This version is apparently 0.7.996 although I cannot see this number on the Synaptic list. My wife's laptop is ok so the problem is on the netbook; I've checked "Edit Connections" and they're both the same.
So presumably the upgrade has removed something NetworkManager needed, but what? I've looked down Synaptic but there's just too much stuff there that I don't understand, likewise an attempt to trawl back through past threads on here. I'm barely computer literate, all assistance very gratefully received! How do I find out what dependencies it's lacking?
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Mar 10, 2011
I have installed opensuse 11.3 I am unable to connect to my wireless connection.
KNetworkManager finds the connection (when i scan for connections), i can enter the WEP Hex key, it says it is configured. Goes through its "check list" when you click "ok", and all seems good. But it won't connect. When i run "nm-tool" i get:
State: unknown
WARNING **: error: could not connect to NetworkManager
I edited values in:
linux-2ys8:/home/sam # vi /var/lib/NetworkManager/NetworkManager.state
to "true"
running rcnetwork restart, output was:
Shutting down network interfaces:
eth0 device: Atheros Communications AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0)
eth0
[code]....
knetworkmanager(9276): KUniqueApplication: Cannot find the D-Bus session server: "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken."
knetworkmanager(9275): KUniqueApplication: Pipe closed unexpectedly.
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Sep 25, 2010
Periodically, about 3 to 5 hours, Ubuntu disconnects from my wi-fi network and doesn't reconnect until I restart the router.This is an Ubuntu specific issue, since it doesn't happen when I boot into my Windows partition, and it doesn't happen to other computers on the network.
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May 24, 2010
Some month ago i bought a UMTS / HSDPA Stick "HUAWEI Mobile Connect E160". I worried about getting it running with Ubuntu, but it was freaking easy to get it running. Even less complicated than installing the same device with windows.
It worked some month without any problem and then suddenly, didnt work any more. If i plug the device to my laptop (lenovo x61) unter linux now, i still can click to start the mobile broadband, it trys to connect some time, but shows "disonnected" at the end (dont know the exact message in englisch, because i use german language prompts). The same device still works fine with same hardware with windows vista at all 3 usb ports. I deleted the mobile broadband settings couples of times and made a new one, without any effect to the behavior.
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Jan 15, 2010
I installed a new 11.2 and now my huawei e1692 works (thanks to huawei e1692 don't work -
openSUSE Forums).
kde=Versione 4.3.4 (KDE 4.3.4) "release 2"
kernel=2.6.31.5-0.1-desktop
[code]...
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Dec 1, 2009
I have Fedora 11 x86_64 installed in my pc.this morning i accidentally pressed "remove the network manager icon" from the main panel and now i cannot find ANY way to put it back.in the services the network manager is working.when i plug the ethernet cable i have access thankfully since it was set to automatic before but i cannot select any wireless networks.all my devices eth0 and wlan0 are controlled by the network manager.i tried to uninstall it and install it back through yum (i know it is what a windows user would do) and nothing still.
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Feb 25, 2010
use kubuntu 9.10 64-bit on AMD Turion M500 machine.The network keeps disconnecting periodically or on some heavy activity The connection is totally stable on windows 7 though.My doubts point to network manager and so my next step is to switch to command line wpa_supplicant
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Mar 3, 2010
I use network-manager-pptp to connect to my VPN server. However, occasionally my VPN drops out (although my Internet stays up). I was just wondering how I could make the VPN drop-out trigger a bash script, for example playing a sound to alert me that the VPN has dropped?
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