I am facing same issue while re-connecting to my TunnelBear VPN. TunnelBear VPN
uses open-vpn service. I have configured VPN as per instructions by TunnelBear.
And it works fine when connect first time, but after that when choose "Turn
Off" from Netowrok-Manager then choose "Connect" again, then I see this same
error. See snapshot from syslog:
Dec 17 20:45:25 KUMAR-PC NetworkManager[902]: [1576611925.5171]
vpn-connection[0x5568a73e41c0,d79431f3-7dda-41cb-b74b-e7b71ed48592,"TunnelBear
India",0]: VPN plugin: state changed: starting (3)
Dec 17 20:45:25 KUMAR-PC NetworkManager[902]: [1576611925.5172]
vpn-connection[0x5568a73e41c0,d79431f3-7dda-41cb-b74b-e7b71ed48592,"TunnelBear
India",0]: VPN connection: (ConnectInteractive) reply received
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: WARNING: --keysize is DEPRECATED and
will be removed in OpenVPN 2.6
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: OpenVPN 2.4.4 x86_64-pc-linux-gnu
[SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on May
14 2019
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: library versions: OpenSSL 1.1.1 11
Sep 2018, LZO 2.08
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: WARNING: --ns-cert-type is
DEPRECATED. Use --remote-cert-tls instead.
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: NOTE: the current --script-security
setting may allow this configuration to call user-defined scripts
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: TCP/UDP: Preserving recently used
remote address: [AF_INET]103.228.153.233:443
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: UDP link local: (not bound)
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: UDP link remote:
[AF_INET]103.228.153.233:443
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: NOTE: chroot will be delayed because
of --client, --pull, or --up-delay
Dec 17 20:45:25 KUMAR-PC nm-openvpn[6237]: NOTE: UID/GID downgrade will be
delayed because of --client, --pull, or --up-delay
Dec 17 20:45:27 KUMAR-PC nm-openvpn[6237]: [9563/server] Peer Connection
Initiated with [AF_INET]103.228.153.233:443
Dec 17 20:45:28 KUMAR-PC nm-openvpn[6237]: Option 'explicit-exit-notify' in
[PUSH-OPTIONS]:3 is ignored by previous blocks
Dec 17 20:45:28 KUMAR-PC nm-openvpn[6237]: Note: option tun-ipv6 is ignored
because modern operating systems do not need special IPv6 tun handling anymore.
Dec 17 20:45:28 KUMAR-PC nm-openvpn[6237]: ERROR: Cannot ioctl TUNSETIFF tun0:
Device or resource busy (errno=16)
Dec 17 20:45:28 KUMAR-PC nm-openvpn[6237]: Exiting due to fatal error
Dec 17 20:45:28 KUMAR-PC NetworkManager[902]: [1576611928.9900]
vpn-connection[0x5568a73e41c0,d79431f3-7dda-41cb-b74b-e7b71ed48592,"TunnelBear
India",0]: VPN plugin: failed: connect-failed (1)
Dec 17 20:45:28 KUMAR-PC NetworkManager[902]: [1576611928.9901]
vpn-connection[0x5568a73e41c0,d79431f3-7dda-41cb-b74b-e7b71ed48592,"TunnelBear
India",0]: VPN plugin: failed: connect-failed (1)
Dec 17 20:45:28 KUMAR-PC NetworkManager[902]: [1576611928.9902]
vpn-connection[0x5568a73e41c0,d79431f3-7dda-41cb-b74b-e7b71ed48592,"TunnelBear
India",0]: VPN plugin: state changed: stopping (5)
Dec 17 20:45:28 KUMAR-PC NetworkManager[902]: [1576611928.9903]
vpn-connection[0x5568a73e41c0,d79431f3-7dda-41cb-b74b-e7b71ed48592,"TunnelBear
India",0]: VPN plugin: state changed: stopped (6)
If someone needs, then I can reproduce this with additional traces. But as much
I could learn from this problem is that, while "Turn Off" from Netowrk-Manager,
Network-Manager is not able to stop openvpn process.
If I stop this openvpn process manually, then try to "Connect" from
Network-Manager menu, it works fine.
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https://bugs.launchpad.net/bugs/1767322
Title:
"Activation of network connection failed" popup shows incessantly
Status in linux package in Ubuntu:
Confirmed
Status in network-manager package in Ubuntu:
Confirmed
Bug description:
All network connections work normally, however the popup "Activation
of network connection failed" keeps showing.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: network-manager 1.10.6-2ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-lowlatency 4.15.17
Uname: Linux 4.15.0-20-lowlatency x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 27 20:04:56 2018
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2018-04-03 (24 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180402)
IpRoute:
default via 192.168.1.1 dev wlp2s0 proto dhcp metric 600
169.254.0.0/16 dev virbr1 scope link metric 1000 linkdown
192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.128 metric
600
192.168.100.0/24 dev virbr1 proto kernel scope link src 192.168.100.1
linkdown
192.168.122.0/24 dev virbr0
