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thanks for the answers, I eventually followed this drastic solution but hopefully definitive sudo apt-get remove -y --purge network-manager network-manager-gnome network-manager-pptp network-manager-pptp-gnome sudo rm -r /var/lib/NetworkManager sudo rm -r /etc/NetworkManager sudo rm -r /etc/network sudo gedit /etc/init/rc-sysinit.conf and in ...


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You might want to create an upstart script that actually executes rfkill block all OR you could disable from starting any networking script in /etc/init and /etc/init.d/. For instance , every script in /etc/init/ folder has line specifying on which run-levels to run the script. By commenting that line out with # you effectively disable the script from ...


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Uninstall the network manager by: sudo apt-get purge networkmanager You can't get more permanent then that...


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I'm not an expert at this, but I see no one has answered your questions so I'll tell you how it works for me. I use a for-pay VPN and it works perfectly with the settings below. One thing you didn't mention is if you installed OpenVPN. That might be something you want to try. Here are the instructions on how to setup a VPN in 12.04/14.04 according to my VPN ...


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The third column after executing the displays the vendor recognized by arp-scan. In the case of (Unknown), it means that arp-scan is unable to recognize it. From nta-monitor.com: If you find a system that arp-fingerprint reports as UNKNOWN, and you know what operating system it is running, please send details of the operating system and fingerprint to ...


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If desired, you can also completely disable the NetworkManager: chkconfig NetworkManager off chkconfig network on service NetworkManager stop service network start


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I wouldn't do it in Ubuntu at all. Depending on the device, I'd remove the network hardware or disable it in the BIOS.


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I am newer to linux but to manually configure your static ip should be as follows sudo vim /etc/network/interfaces or whatever editor you prefer auto lo iface lo inet loopback auto wlan0 iface wlan0 inet static address 192.168.10.2 netmask 255.255.255.0 gateway 192.168.10.1 network 192.168.10.0 broadcast 192.168.10.255 follow changes with sudo ...


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For Desktop versions of Ubuntu (which use NetworkManager) the /etc/network/interfaces file should contain only the following loopback interface definition: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback If your /etc/network/interfaces file is really completely empty, then paste the above into it, save and reboot.


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Try ifconfig eth0 IP_ADDRESS netmask 255.255.255.0 up to see if the network interface is actually available to the system. Just because it is not showing inside the /etc/network/interfaces it does not mean it is gone. Routers usually have some standard IP address like 192.168.1.1, 192.168.2.1 etc. You can also check its manual too see the details if you ...


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I have this problem exactly. In 14.04 there was a flaky indicator I could use. It is not available in 14.10. In 14.10 with XFCE4, Settings > Network Connections allows me to set up VPN connections but does not give me the option to connect to any of them. I've looked everywhere for an app offering connections like those offered in the Unity dropdown, but I ...


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ihashacks's answer with Matt's comments worked for me... almost. Had to tweak one line. my password-flag line actually read: "Xauth password-flag". The accepted answer wouldn't work for me until I changed to the following [vpn] ... Xauth password-flag=0 IPSec secret-flags=0 [vpn-secrets] Xauth password=<my pw> ## This is the one I changed. Ipsec ...


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/run/ is a tmpfs file system that only exists in RAM and is created anew on every system start. Any changes you make there are lost after shutdown. To prevent Networkmanager to automatically connect to that hostspot edit the connection and switch off the "Automatically connect to this network when it is available" option.


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You can try disabling the n mode of the driver with these commands: echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf sudo modprobe -rfv iwlwifi sudo modprobe -v iwlwifi If still has problems, try deactivating the power management of the card with this command: sudo iwconfig wlan0 power off Source: ...


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The OP answered the question themselves in a comment: switching the wireless channel fixed it - viale


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Bridging with NetworkManager finally works for me in 15.04 beta (with VPN). In 14.04 it didn't, not sure about 14.10. Delete Wired Connections for interfaces you want to bridge (eth0, eth1, ...) Add -> Virtual -> Bridge Bridged Connections -> Add -> Ethernet Choose MAC of port you want to bridge, Save General -> Automatically Connect Save the bridge You ...


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You are seeing a bluetooth connection, which you can get more information on with nmcli: nmcli -p con


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This is an old question but the only thing I have found while trying to solve a similar issue on my 14.04.2 install. I had a similar menu entry that mysteriously appeared and eventually realised it had appeared after I had paired my phone to my laptop via bluetooth (it would appear whether bluetooth was switched on or not). In my case this seemed to be ...


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Your problem is well described on the Ubuntu wiki: https://wiki.ubuntu.com/OnNetworkConnectionRunScript


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In the future Network Manager will have a priority setting --- it has been a long battle, but it's finally here. Now, I have no idea on how long it will take to percolate down and to the user interface. For the time being, your best bet is going into the wireless manager and "forget" or "delete" the connection of your neighbors. This shot is from ...


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I found that adding the line dns-nameserver ip to the interfaces file, setting the wired connection ipv4 settings to Automatic (DHCP) settings only and entering the DNS server IP and domain name. Also adding the local DNS IP to the DSL router static DNS section causes NetworkManager to include this local address in the resolv.conf file that it overwrites ...


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One quick work-around is to invoke the connection editor manually from the command line: nm-connection-editor You'll get the same familiar edit screen. Worked for me.


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org.freedesktop.NetworkManager service file is provided by network-manager package. $ grep -rl NetworkManager /etc/dbus-1/ /usr/share/dbus-1/ /etc/dbus-1/system.d/nm-pptp-service.conf /etc/dbus-1/system.d/nm-strongswan-service.conf /etc/dbus-1/system.d/nm-vpnc-service.conf /etc/dbus-1/system.d/nm-openvpn-service.conf ...


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Ubuntu 14.04 comes with a working rtl8723ae driver, so there is no need to build one. Try the function key (F12 on my Toshiba) to enable/disable wireless. Thats the "hard block" problem from the output of rfkill list The soft block problem is a program like NetworkManager not haveing the "Enable Wifi" checked. Wicd works, but I don't have any ...


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The command-line equivalent of unchecking the nm-applet's 'Enable Wi-fi' should be nmcli nm wifi off To re-enable, use nmcli nm wifi on If you need to permanently disable a particular device, then you can do that programatically using the unmanaged-devices feature in /etc/NetworkManager/NetworkManager.conf or (at a lower level) by blacklisting or ...


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I solved this myself. Not sure what happened to router or my ethernet config, but it now don't work when router ISP port uses same MAC address as my ethernet port does. So I changed MAC address of ethernet, and now internet resourses are available. Can't change MAC address of ISP port, since provider binded it and I can't reset binded MAC addresses during ...


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You present a lot of information in a very confusing way, but I think your problem is not severe. You said your interfaces file contained: auto wlan1:0 iface wlan1:0 inet static address 192.168.4.1 netmask 255.255.255.0 wireless-mode ad-hoc Please change it to: auto wlan1 iface wlan1 inet static address 192.168.4.1 netmask 255.255.255.0 and reboot. ...


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This will install backported modules from the 3.19 kernel and it works well sudo apt-get install linux-headers-generic build-essential wget https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.19-rc1/backports-3.19-rc1-1.tar.gz tar -zxvf backports-3.19-rc1-1.tar.gz cd backports-3.19-rc1-1 make defconfig-rtlwifi make sudo make install echo ...


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It once happened to me . What I did is to turn ethernet automatic. You can see a picture here : After trying many things as you did , enable the auto ethernet worked for me .


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I can tell you a simple way to change the eth1 address without using macchanger. sudo ifconfig eth1 down sudo ifconfig eth1 hw ether 00:11:22:33:44:55 sudo ifconfig eth1 up Then you're all set with your new mac address.


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I had the same problem and solved it with this: Login as root or do su or sudo su. touch /etc/modules-load.d/netfilter.conf edit /etc/modules-load.d/netfilter.conf Put the following lines in the netfilter.conf: nf_nat_pptp nf_conntrack_pptp nf_conntrack_proto_gre Save file and reboot.


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you have recently installed an update ? Looks like a similar situation: http://zeroset.mnim.org/2014/04/22/unstable-wifi-connection-on-ubuntu-14-04-trusty-tahr-ctrl-event-disconnected-reason4-locally_generated1/


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The command that should make wifi work is sudo apt-get install bcmwl-kernel-source and edit question to include results from lspci -nnk | grep -iA2 net and I will see what I can find


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As @Zeiss Ikon said, it seems that it doesn't support AP mode. Sadly this happens to me too. You can run in a terminal iw list and check the Supported interface modes: section to see if there is any reference to AP. If not, then you can't use the AP mode.


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run rfkill list before the WiFi disconnects and after the disconnection. Let me know what is the output. Drivers for the WiFi chipsets that Lenovo uses are buggy.


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When a server starts, it has to bind to which ip addresses it will listen to. Here the server specifices one or more triples of protocol (usually TCP or UDP), port number(like http or smtp) and ip address (ipv4 or ipv6). All those are specified in the configuration files. As long as no such triple are the same, you will have no collisio. Except for the ...


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Turn off firewall with sudo ufw disable.


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Creating wifi-hotspot using Unity's default network manager without downloading any tool/software. 1. Disable WIFI and plug in an internet cable or mobile-broadband modem to your Ubuntu so that your Ubuntu is connected to wired or broadband connection and wireless is disabled. 2. Go to Network Icon on the top panel -> Edit Connections, then click the Add ...


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You do not have a default gateway assigned. Here is my routing info Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0 0.0.0.0 192.168.0.1 0.0.0.0 UG 2 0 0 wlan0 Note that my first line, aside ...


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If your wi-fi access point is saved, it will auto-connect. Turn wireless on or off with a simpler command: nmcli nm wifi on nmcli nm wifi off For reference, see man nmcli.


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well, after further fiddling around with this issue i finally got everything back to work (meaning being able to connect to encrypted wifi-networks using nm-applet) but what led to the success is not entirely clear as i've tried several things some of which i am unaware of how to revert. there seem to be four factors that (in some combination) lead to a ...


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I posted an easier solution here with links to just download the ubuntu2.3 version of network-manager-gnome which is all you need. https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1424119


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Couple of things to do: Remove needless stuff from resolv.conf 1 # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) 2 # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN 3 nameserver 8.8.8.8 | sudo tee -a /etc/resolv/conf.d/head 4 printtf nnameserver 5 nameserver 8.8.8.8 | ...


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On Ubuntu 12.04 downgrade packages ("force version" with Synaptic) from precise-updates to precise for: unity-greeter 0.2.9-0ubuntu1.5 -> 0.2.8-0ubuntu1 libnm-gtk0 0.9.4.1-0ubuntu2.4 -> 0.9.4.1-0ubuntu2 libnm-gtk-common 0.9.4.1-0ubuntu2.4 -> 0.9.4.1-0ubuntu2 network-manager-gnome 0.9.4.1-0ubuntu2.4 -> 0.9.4.1-0ubuntu2 and disable auto update in software ...


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Shouldn't it be wireless-essid MU-GAMING And not wireless-essied MU-GAMING


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From a search sudo dpkg-reconfigure resolvconf should make /etc/resolv.conf but mine only contains nameserver 127.0.1.1


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You should select the option Automatic (PPPoE) - addresses only instead of Automatic (PPPoE). The box will then become just DNS Servers instead of Additional DNS Servers.



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