Ubuntu Networking :: NetworkManager Taking Scenic Route - Grayed Out - Error "Network Manager Is Disabled"
May 6, 2010
I've just switched from xub to lub, and I must say it's a lot lot faster. There's just one really annoying problem (I have no idea if this is in any way related to LXDE or if it's just due to 10.04): Network Manager only starts about a minute after the rest of the desktop. So my system boots up, I log in, see the applet, but it is greyed out (it tells me "Network Manager is disabled" or something similar). After a minute (approx), it suddenly comes to life and connects me. Now, I think this only happens when I have:
A) set the wireless connection to "all users"
B) given an empty password for the keyring
But when I cancel either of the two above, it doesn't stop it from happening. I've tried updating etc.. to no avail. I've also tried wicd, but for some reason installing wicd from synaptic doesn't remove Network Manager? Anyway, has anyone seen behaviour like this? Any suggestions for first steps to take to see where it's blocking?
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Apr 22, 2010
[url] I have just had a similar problem.
No network, and dhclient command allowed the machine to lease an ip address from the dhcp server. Networking capability back.
EXCEPT that Network Manager is still greyed out as unmanaged, and right click still gives Network Management Disabled.
Wonder what's going on with Lynx and NM?
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Mar 10, 2009
I'm running Fedora 10. My Network Manager settings are all grayed out. They are uneditable. I can see the detected settings, but not change them. All of the settings fields are disabled.
Is there a way to enable these, so that they can be edited?
Starting with the menu in the upper left corner of the GNOME screen: System/Preferences/Internet And Network/Network Connections
The Network Manager window appears correctly.
I see all automatically generated settings that were created for my various devices:
In particular, I want to be able to edit "Auto vmnet8", for VMware usage.
I know about the workaround of going back to the manual network configuration as used in older versions of Fedora, such as editing the files in /etc/sysconfig/network-scripts/ifcfg-* and then enabling the old "network" service and disabling the "NetworkManager" service.
However, this workaround really won't work in this situation. The VMware interfaces, vmnet1 and vmnet8, are virtual interfaces that *only* exist when the VMware services are running. The VMware services are started *after* the old manual network configuration would be applied. So, at the time the scripts in /etc/sysconfig/network-scripts are processed, the vmnet1 and vmnet8 devices do not yet exist! I'm hesitant to change the numbering of services, lest other things break (VMware on Fedora 10 is rather fragile already).
I love the feature of NetworkManager to be able to automatically apply settings to newly materialized network devices (such as vmnet1 and vmnet8 when VMware is loaded). However, I need to also be able to edit those settings.
Is there a solution that will make my Network Manager "Edit" window not be entirely grayed out? I can see the settings pages just fine, but unfortunately, they are all disabled and I can't edit them at all.
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Jul 11, 2010
I'm currently struggling with the following problem: Connecting to a wired network with NetworkManager (0.7.1) is no problem at all: Everything is set up automatically, including the default route:
[Code]....
When I now add the route manually it works. But as soon as the cable is plugged in, the NetworkManager overwrites the routing table entry again (which makes it quite annoying). Does anyone know a way to avoid this behaviour?
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May 5, 2010
I have been encountering this problem, not only on 10.4, but on older versions too: I use a wifi router to connect my laptop to the Internet, but sometimes I need to connect directly to another computer to move some files over GLAN. But Ubuntu's Network manager doesn't allow me to configure the eth0 interface without specifying a gateway (no gateway = grey submit button), but when a gateway is specified, it always rewrites the default gw specified already by the active wifi connection and returns back after unplugging the eth cable.
Of course this can be solved by a few route commands, but this is unacceptable since it is needed to establish the cable connection without any further assistance from within and as well without replacing the default gw and thus breaking the Internet connection. Is there, please, any possibility how to prevent Network Manager from replacing these routes?
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Mar 23, 2010
I have Ubuntu 10.04 and had no problems with wireless or wired. However, now it says Networking Disabled. When I click on it, everything is grayed out. My physical wireless button is on.
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Jan 13, 2011
I've tried to configure :
- a wired network
- a wireless network
- a mobile broadband network as both "system connection" and "automatic connection".
I need to have a laptop that will try to connect as sson as I plug the ethernet cable in or as soon as it senses a certain SSID or as soon as there's a mobile broadband device plugged into a USB port. Non-system connections are working but I am not willing the actual user (non-admin) to read the WPA2 key or the SIM PIN. But the check box for the system connection is disabled. And running "sudo kcmshell4 --icon networkmanager kcm_networkmanagement kcm_networkmanagement_tray" doesn't result in a system connection.
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May 29, 2011
I've installed ubuntu 10.04 on a hp mini 110. I've used netbook remix on this same computer and had no problems with a wireless connection. In this case, network manager shows wireless disabled. I have installed the Broadcom B43 Wireless drive from Adminstration->Hardware drivers. No help! ifconfig does not
show eth1 and lspci tells me that the Broadcom BCM4312 Network controller is present.
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Jul 6, 2009
I have the following network/server configuration:
[Code]....
How do I prevent eth1 from being able to overwrite the default gateway that eth0 has already set?!? I read that one can create route-* files in the /etc/sysconfig/network-scripts/ directory to setup static default routes.But those seems to require one to know the IP address of the gateway, but in my case the ISP's gateway is served via DHCP and so it could vary from day to day. Here are the contents of some of the relevant files:
[code]...
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Feb 27, 2010
I had installed Fedora 12. I am using 4 LAN Cards. All these cards were configured using network manager, but i am not able to acivate /deactivate these cards using acivate /deactivate buttons since they got disabled. I could activate the cards by running /etc/init.d/restart network. Anyone knows why the acivate /deactivate buttons in network manager are disabled .
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Feb 2, 2010
using redhat on server machine and open suse on client machine.i have installed nfs server and and it is running properly but when i want to mount shares from my client machine it gives the following.
error. "mount.nfs: mount to NFS server '10.3.31.146:/share' failed: System Error: No route to host" both systems ping each other and firewall is also disabled. another problem is when i remotely access from my server machine to client machine it gives the following error ssh:connect to host 10.3.31.147 port 22:connection refused what can be the problem?
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May 27, 2010
Using kubuntu 10.04, I accidentally disabled networkmanager on startup for one of the users of my system. This user now has to manually start networkmanager each time after logging in. How can I make kde run networkmanager automatically again?How this happened: when I started a parallel session as an other user, while already connected via networkmanager in my own profile, kde detected this and asked something along the lines of "There's already a networkmanager running, run networkmanager automatically in the future?" Since I was a little confused, I clicked "no", and that's how things are ever since. I thought there would be some system setting that would allow me to restore this setting, but I haven't found it yet...
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Mar 3, 2009
I have been running FC8 on this IBM T23 with a D-Link wireless adapter. Using MadWifi this has worked fine with Network Manager disabled. But now I have nuked that installation and replaced it with FC10. Network Manager is nice, and I would like to use it. And it kind-of works. Network Manager recognizes my router and all my neighbor's routers, but I can't connect.
[Code]....
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Jul 9, 2010
I have just installed Fedora 13 on my Lenovo Ideapad S12 (company laptop, evaluating Fedora for companywide use on all laptops) and a facing a weird problem with KDE4 and NetworkManager / knetworkmanager. The laptops wifi card is a Broadcom BCM4312 and I have successfully extracted the necessary b43 firmware. The b43 module loads on boot and the wireless card is activated and ready to use. However, NetworkManager doesn't seem to agree and has wireless disabled by default every time I reboot or even logout / login. I have to check the box manually after which it automatically connects to my wifi network at home.
Any idea where I can check that box automatically on boot?
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Aug 1, 2011
I recently installed Fedora 15 x86_64 on my new AMD Machine and I'm quite pleased with things thus far.Here's where my problem comes. I mainly bought that machine to help me with Development. More specifically, Virtual Machines for testing purposes. I have installed Fedora 15 x86_64 as a qemu-kvm Virtual Machine and it's working.. for the most part. I am having a whole lot of trouble getting it to connect to the Internet.
My guess is the only way I'm going to reliably do that is to setup a Bridge. Yes/no? However, in order to setup a Bridge I need to disable NetworkManager and that where the fun happens. It completely disables my network connection. I'm probably missing something small, but I can't figure out what I'm missing. I've double checked my ifcfg-em1 multiple times(I've been trying for ~24 hours so far) and all the settings are as they should be.
I've turned NetworkManager off and stopped it(chkconfig and service) and turned network on(chkconfig and service). Theoretically I should simply need to turn off NM and turn on network and things should be fine. no?
Well, aside from adding:
ONBOOT=yes
NM_CONTROLED=no
to ifcfg-em1.
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May 14, 2010
What happened:- I run out of battery (laptop)- I believe Kubuntu tried to suspend to disk, but that failed, the system froze- after reboot the system tray applet just told "network manager disabled" How do I fix this ??.. I tried but after entering the second line of code it says no such file/directory exist...
Code:
service network-manager stop
rm /var/lib/NetworkManager/NetworkManager.state
[code]....
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Jan 25, 2011
Having trouble getting my Netgear WNA1000 working thru wireless router. Have tried lots of suggestions from other threads to no avail. Someone suggested that th routing table isn't set correctly, so have been trying to use the follwing to make the proper entry in the routing table: sudo route add -net 192.168.0.1 netmask 255.255.255.0 dev wlan0
Result: error message stating with:
"route: netmask does not match route address"
followed by "Usage" instructions which tell me to do what I just did. Any ideas on how I can populate my routing table with correct entry for my wireless card? Not to complicate matters, but I temporarily turned off encryption on my router to eliminate that as a possibility until I get connected. So maybe it'still trying to connect via encrypted mode - do I need to turn off encryption on my (client) end?
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May 28, 2010
EDIT: Whoops. Just realized that there is a Networking subforum. Apologies. In 10.04, I am able to get to the dialog in NM that asks for the network name and security for the creation of a new wireless network. However, the "Connect" button is grayed out and filling out all fields doesn't allow me to press it. I assume that this means that either there is a problem with my configuration or that my network card is not supported. Here is the lshw entry for my wireless card:
Code:
*-network
description: Wireless interface
product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection
vendor: Intel Corporation
[Code]...
EDIT2: Well, I was able to make an ad hoc connection via "Edit Connections" This seems to be a bug in the NetworkManager dialog.
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Mar 14, 2011
I just installed Ubuntu 10.04, everything is fine, but the wireless. When I try to connect to my WPA2 protected network, it is grayed out. SO I click Connect to Hidden Wireless Network, and this window pops up. I put in my network name, the security type, and password. It acts like it is connecting, the wireless icon is going up and down. But then another window pops up, saying Authentication required by wireless network and the down arrow is grayed out. Screenshot.jpg
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Dec 17, 2009
My MythTV box has two interfaces:
A 10/100 Ethernet interface built into the motherboard. (Recognized as eth0)
A USB wireless dongle. Linksys, I believe. (Recognized as wlan0)
Both of these were working fine under FC8.
I recently performed a full reinstall, using Fedora 12.
Both network devices are recognized. I can configure them, using the Network Devices GUI that comes with KDE.
In the case of the wireless device, I entered all of the required information. (Copied in from the FC8 settings.)
Here's the problem. Whether I'm the root user or not, the "Enable" button is grayed out.
Any ideas? I had *no problem* with this device under FC8. The hardware "I see you" messages in /var/log/messages don't suggest any problems. I'm not leaving out any setting information.
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Oct 28, 2010
I did a fresh install of OpenSuSE 11.3 KDE 64-bit on my new laptop. Worked like a charm. But I brought it with me to work without connecting it to a wi-fi and now the network manager doesn't want to start when I'm back in range of my home connection. Also, whenever I try to launch KNetworkManager, it won't load up a window and I still can't connect. This is even disabling the Ethernet port also.
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Nov 30, 2010
i have installed fedora12 in my compaq laptop.i am under proxy..i just gave the local ip address to the laptop..and try to activate the etho device..but ..all the activate,deactivate,delete buttons are grayed out..they are completely looking dead..
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Mar 2, 2011
I have installed qemu/kvm and created a Bridged network connection which works just fine(Windows 7 VM won't work in NAT mode.)
But when I try to use NetworkManager it says that I have no network connection because the network isn't managed, (I set the settings in ifcfg-br0 and ifcfg-eth0 to be managed)
The real problem is that now I can't use my VPN connections (I have many) in NetworkManager.
Is there a way to have both of these pieces of functionality?
I am using FC14
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Aug 30, 2010
today I tried to configure a network route to a host for testing my network interface. Code: route add 192.168.1.15 eth0 As I have to eth interfaces and both interface got their IP from DHCP (192.168.1.11 and 192.168.1.12) and are in the same subnet, I shut the other interface down:
Code: ifconfig eth1 down Then I tried to test the interface by doing a ping to 192.168.1.15.
Problem: When I unplug the cable from eth0 (and eth1 is still plugged) the ping still works. Somehow my linux (it's debian) powers up again eth0 and pings over this port.
How can I stop my linux doing this. I just want to have the route added only on the one interface - not the other. Is it maybe some case of a default-gateway?
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Jan 1, 2011
Running ubuntu 10.10 here, brand new install/machine.USB wireless based on a realtek chipset. I spent a few days trying ndiswrapper, and now have the native driver up and running. I can see the network(s) but can't connect. If I encrypt the network, i get a bad password error from wicd network manager (All encypt. methods- Weps, WPA etc) If I open my wireless up with no encryption, i receive a "can't obtain IP" error.
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Jun 23, 2010
I am using fedora 13. when i restart network service then following error.
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Aug 22, 2010
I've currently got a Xen box with 3 Virtual machines on it, in a routed setup. I'd like to put them all on a private internal network as well, which I'm assuming I'd do with a dummy network card and a xen bridge, but I can't find any information about setting up the xen Bridging setup on top of the existing network-route instlal.
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Nov 15, 2009
yesterday I installed openSUSE 11.2 on my laptop. But I'm having problem getting the wifi configured properly. During the installation I got the message "No network running" (which I also saw after the installation when using the network configuration module of YaST after switching from ifup to NetworkManager). After installation NetworkManager seemed to work fine, it detected my wifi card, found the network, and I could even connect to it. Then the problems began, no Internet connection. The first thing I tried was pinging Google which yielded an "unknown host" message. So I checked /etc/resolv.conf, to look for the DNS servers, which where missing.
I added them manually and tried again. Still no luck, so I started pinging my router, which worked, tried again pinging Google using one of there IP addresses, which failed. So I ran route to find out which routes where being used, this one gave an unexpected result, because it only showed the route to the local network (I'm not sure about the loopback one, because this was also a lot of times missing when testing):
[Code]...
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Sep 8, 2010
I have a server with 2 network cards. eth0 is used for all traffic and everything is working fine on this side. Eth1 is used for traffic to and from 1 ip address.
Lets say the ip address of eth1 is 123.123.123.10 and its gateway is 123.123.123.1. I need to pass all traffic to 123.123.123.20 through eth1. What command would i use?
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Jul 13, 2010
I'm using ubuntu server 10.04. I need to create a second network to do some testing. Here's what it looks like so far: WAN > x.x.x.x/9 > router > 192.168.1.0/24 > LAN
I need to do this: WAN > x.x.x.x/9 > router > 192.168.1.0/24 > LAN > ubuntu server (LAMP, dhcp, dns via eth1) [eth0 192.168.1.138] > ubuntu server [eth1 10.0.0.1] The two networks should be transparent to one another. I've got everything working, except routing. Here is ifconfig:
[Code]...
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