Public bug reported: When the laptop is connected to the house's network using Wifi and Ethernet at the same time I don't get network connection . But each one works alone meaning if i manually disable one of them i get network access . As i found out the Network Manager gives eth0 and wlan0 same metric . These are outputs that helps , all under default ubuntu 15.04 configurations .
Output of route -n when both (eth0 and wlan0) are enabled : Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.100.102.1 0.0.0.0 UG 1024 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0 Output of route -n when only ethernet is enabled : Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.100.102.1 0.0.0.0 UG 1024 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 One more thing if i disconnect from wifi then reconnect again (i get network access), i get this route -n output : Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.100.102.1 0.0.0.0 UG 1024 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0 output of cat /etc/NetworkManager/NetworkManager.conf : [main] plugins=ifupdown,keyfile,ofono dns=dnsmasq [ifupdown] managed=false output of cat /etc/network/interfaces: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: network-manager 0.9.10.0-4ubuntu15.1 ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1 Uname: Linux 3.19.0-22-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 CRDA: country EU: DFS-UNSET (2402 - 2482 @ 40), (N/A, 20), (N/A) (5170 - 5250 @ 40), (N/A, 20), (N/A) (5250 - 5330 @ 40), (N/A, 20), (0 ms), DFS (5490 - 5710 @ 40), (N/A, 27), (0 ms), DFS CurrentDesktop: Unity Date: Fri Jul 24 12:53:46 2015 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2015-03-26 (119 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326) IpRoute: default via 10.100.102.1 dev eth0 proto static metric 1024 10.100.102.0/24 dev eth0 proto kernel scope link src 10.100.102.2 10.100.102.0/24 dev wlan0 proto kernel scope link src 10.100.102.5 169.254.0.0/16 dev wlan0 proto static scope link metric 1000 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/1 Wired connection 1 f5b8c506-2c0a-4370-9b21-3f877ecbd7a6 /org/freedesktop/NetworkManager/ActiveConnection/12 wlan0 wifi connected /org/freedesktop/NetworkManager/Devices/2 Hamody 915afaa9-09cb-4035-bb77-9c0f04211ce1 /org/freedesktop/NetworkManager/ActiveConnection/13 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug vivid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1477918 Title: Network Manager gives Wifi and Ethernet same metric Status in network-manager package in Ubuntu: New Bug description: When the laptop is connected to the house's network using Wifi and Ethernet at the same time I don't get network connection . But each one works alone meaning if i manually disable one of them i get network access . As i found out the Network Manager gives eth0 and wlan0 same metric . These are outputs that helps , all under default ubuntu 15.04 configurations . Output of route -n when both (eth0 and wlan0) are enabled : Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.100.102.1 0.0.0.0 UG 1024 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0 Output of route -n when only ethernet is enabled : Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.100.102.1 0.0.0.0 UG 1024 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 One more thing if i disconnect from wifi then reconnect again (i get network access), i get this route -n output : Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.100.102.1 0.0.0.0 UG 1024 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 10.100.102.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0 output of cat /etc/NetworkManager/NetworkManager.conf : [main] plugins=ifupdown,keyfile,ofono dns=dnsmasq [ifupdown] managed=false output of cat /etc/network/interfaces: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: network-manager 0.9.10.0-4ubuntu15.1 ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1 Uname: Linux 3.19.0-22-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1.1 Architecture: amd64 CRDA: country EU: DFS-UNSET (2402 - 2482 @ 40), (N/A, 20), (N/A) (5170 - 5250 @ 40), (N/A, 20), (N/A) (5250 - 5330 @ 40), (N/A, 20), (0 ms), DFS (5490 - 5710 @ 40), (N/A, 27), (0 ms), DFS CurrentDesktop: Unity Date: Fri Jul 24 12:53:46 2015 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2015-03-26 (119 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326) IpRoute: default via 10.100.102.1 dev eth0 proto static metric 1024 10.100.102.0/24 dev eth0 proto kernel scope link src 10.100.102.2 10.100.102.0/24 dev wlan0 proto kernel scope link src 10.100.102.5 169.254.0.0/16 dev wlan0 proto static scope link metric 1000 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/1 Wired connection 1 f5b8c506-2c0a-4370-9b21-3f877ecbd7a6 /org/freedesktop/NetworkManager/ActiveConnection/12 wlan0 wifi connected /org/freedesktop/NetworkManager/Devices/2 Hamody 915afaa9-09cb-4035-bb77-9c0f04211ce1 /org/freedesktop/NetworkManager/ActiveConnection/13 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. 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