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#1 2021-03-31 15:43:55

saramkon
Member
Registered: 2021-03-31
Posts: 3

[Solved] NetworkManager disconnects sporadically and randomly

Hi,

my internet connection will sporadically disconnect throughout the day and reconnect after a few seconds. The period in between the disconnects seems random as well.
I tried changing the dhcp client NetworkManager uses from the internal client to dhclient, but that did not yield any change. The pc had these problems since its inception a few weeks ago. While I sometimes had connection problems with my old pc as well, they normally lasted a few minutes and happened only once every two weeks or so, which I assumed was because of issues with the router. So I am not 100% ruling out an external problem, but I think it is very unlikely considering the external hardware is identical to my previous setup.

journalctl -r output:

Mar 31 16:53:27 systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3775] manager: NetworkManager state is now CONNECTED_GLOBAL
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3268] device (enp5s0): Activation: successful, device activated.
Mar 31 16:53:24 dhclient[4682]: bound to 192.168.1.36 -- renewal in 40790 seconds.
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3167] policy: set 'Wired connection 1' (enp5s0) as default for IPv4 routing and DNS
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3167] manager: NetworkManager state is now CONNECTED_SITE
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3162] manager: NetworkManager state is now CONNECTED_LOCAL
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3161] device (enp5s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3160] device (enp5s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3147] device (enp5s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0): state changed unknown -> extended, address=192.168.1.36
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   domain name 'home'
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   nameserver '192.168.1.1'
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   lease time 86400
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   gateway 192.168.1.1
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   plen 24 (255.255.255.0)
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   address 192.168.1.36
Mar 31 16:53:24 dhclient[4682]: DHCPACK of 192.168.1.36 from 192.168.1.1
Mar 31 16:53:24 dhclient[4682]: DHCPREQUEST for 192.168.1.36 on enp5s0 to 255.255.255.255 port 67
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2553] dhcp4 (enp5s0): dhclient started with pid 4682
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2537] dhcp4 (enp5s0): activation: beginning transaction (timeout in 45 seconds)
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2534] device (enp5s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2527] device (enp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2525] manager: NetworkManager state is now CONNECTING
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2522] device (enp5s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2521] device (enp5s0): Activation: starting connection 'Wired connection 1' (1d3b137a-b410-3b98-9fdb-76a7fd183bf3)
Mar 31 16:53:24 kernel: igb 0000:05:00.0 enp5s0: igb: enp5s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2517] policy: auto-activating connection 'Wired connection 1' (1d3b137a-b410-3b98-9fdb-76a7fd183bf3)
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2507] device (enp5s0): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2505] device (enp5s0): carrier: link connected
Mar 31 16:53:17 kernel: audit: type=1130 audit(1617202397.815:142): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:53:17 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:53:17 systemd[1]: Started Network Manager Script Dispatcher Service.
Mar 31 16:53:17 dbus-daemon[597]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Mar 31 16:53:17 systemd[1]: Starting Network Manager Script Dispatcher Service...
Mar 31 16:53:17 dbus-daemon[597]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.2' (uid=0 pid=598 comm="/usr/bin/NetworkManager --no-dae>
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.8122] manager: NetworkManager state is now DISCONNECTED
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.8020] dhcp4 (enp5s0): state changed extended -> done
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.8020] dhcp4 (enp5s0): canceled DHCP transaction, DHCP client pid 2764
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.7366] device (enp5s0): state change: activated -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed')
Mar 31 16:53:11 kernel: igb 0000:05:00.0 enp5s0: igb: enp5s0 NIC Link is Down

I updated today, so everything should run on the latest version. I would appreciate any help or troubleshooting advice.

Last edited by saramkon (2021-04-06 15:52:06)

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#2 2021-03-31 15:56:21

seth
Member
Registered: 2012-09-03
Posts: 19,799

Re: [Solved] NetworkManager disconnects sporadically and randomly

The journal segment is too short and only starts when the link goes down, but cannot explain why.

It's like top posting.
Also please don't use "-r".

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#3 2021-03-31 16:30:35

saramkon
Member
Registered: 2021-03-31
Posts: 3

Re: [Solved] NetworkManager disconnects sporadically and randomly

Sorry for the log direction. I pasted the logs from the first event I associated with the disconnect. Here are the logs between two disconnects -5min. I removed me using sudo once and removed the akonadi crash stacktrace.

-- Journal begins at Wed 2021-03-10 03:23:15 CET, ends at Wed 2021-03-31 18:23:42 CEST. --
Mar 31 16:35:36 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:35:36 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:10 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:10 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:11 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:11 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:11 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:11 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:36:11 rtkit-daemon[1166]: Successfully made thread 2226 of process 2076 owned by '1000' RT at priority 10.
Mar 31 16:36:11 rtkit-daemon[1166]: Supervising 9 threads of 6 processes of 1 users.
Mar 31 16:40:51 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:40:51 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:40:52 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:40:52 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:41:19 kernel: igb 0000:05:00.0 enp5s0: igb: enp5s0 NIC Link is Down
Mar 31 16:41:25 NetworkManager[598]: <info>  [1617201685.1502] device (enp5s0): state change: activated -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed')
Mar 31 16:41:25 NetworkManager[598]: <info>  [1617201685.2153] dhcp4 (enp5s0): canceled DHCP transaction, DHCP client pid 691
Mar 31 16:41:25 NetworkManager[598]: <info>  [1617201685.2153] dhcp4 (enp5s0): state changed extended -> done
Mar 31 16:41:25 NetworkManager[598]: <info>  [1617201685.2299] manager: NetworkManager state is now DISCONNECTED
Mar 31 16:41:25 dbus-daemon[597]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.2' (uid=0 pid=598 comm="/usr/bin/NetworkManager --no-daemon ")
Mar 31 16:41:25 systemd[1]: Starting Network Manager Script Dispatcher Service...
Mar 31 16:41:25 dbus-daemon[597]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Mar 31 16:41:25 systemd[1]: Started Network Manager Script Dispatcher Service.
Mar 31 16:41:25 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:41:25 kernel: audit: type=1130 audit(1617201685.233:122): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9501] device (enp5s0): carrier: link connected
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9503] device (enp5s0): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9513] policy: auto-activating connection 'Wired connection 1' (1d3b137a-b410-3b98-9fdb-76a7fd183bf3)
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9517] device (enp5s0): Activation: starting connection 'Wired connection 1' (1d3b137a-b410-3b98-9fdb-76a7fd183bf3)
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9517] device (enp5s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9520] manager: NetworkManager state is now CONNECTING
Mar 31 16:41:31 kernel: igb 0000:05:00.0 enp5s0: igb: enp5s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9521] device (enp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9527] device (enp5s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9529] dhcp4 (enp5s0): activation: beginning transaction (timeout in 45 seconds)
Mar 31 16:41:31 NetworkManager[598]: <info>  [1617201691.9543] dhcp4 (enp5s0): dhclient started with pid 2764
Mar 31 16:41:32 dhclient[2764]: DHCPREQUEST for 192.168.1.36 on enp5s0 to 255.255.255.255 port 67
Mar 31 16:41:32 dhclient[2764]: DHCPACK of 192.168.1.36 from 192.168.1.1
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0196] dhcp4 (enp5s0):   address 192.168.1.36
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0196] dhcp4 (enp5s0):   plen 24 (255.255.255.0)
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0196] dhcp4 (enp5s0):   gateway 192.168.1.1
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0196] dhcp4 (enp5s0):   lease time 86400
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0197] dhcp4 (enp5s0):   nameserver '192.168.1.1'
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0197] dhcp4 (enp5s0):   domain name 'home'
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0197] dhcp4 (enp5s0): state changed unknown -> extended, address=192.168.1.36
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0203] device (enp5s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0216] device (enp5s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0218] device (enp5s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0221] manager: NetworkManager state is now CONNECTED_LOCAL
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0230] manager: NetworkManager state is now CONNECTED_SITE
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0231] policy: set 'Wired connection 1' (enp5s0) as default for IPv4 routing and DNS
Mar 31 16:41:32 dhclient[2764]: bound to 192.168.1.36 -- renewal in 40260 seconds.
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0323] device (enp5s0): Activation: successful, device activated.
Mar 31 16:41:32 NetworkManager[598]: <info>  [1617201692.0811] manager: NetworkManager state is now CONNECTED_GLOBAL
Mar 31 16:41:35 systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Mar 31 16:41:35 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:41:35 kernel: audit: type=1131 audit(1617201695.600:123): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:42:21 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:21 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:23 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:23 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:30 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:30 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:46 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:42:46 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:43:16 dbus-daemon[597]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.home1.service': Unit dbus-org.freedesktop.home1.service not found.
Mar 31 16:43:25 dbus-daemon[597]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.home1.service': Unit dbus-org.freedesktop.home1.service not found.
Mar 31 16:43:30 dbus-daemon[597]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.home1.service': Unit dbus-org.freedesktop.home1.service not found.
Mar 31 16:44:45 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:44:45 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:45:47 systemd[1]: Starting Cleanup of Temporary Directories...
Mar 31 16:45:47 systemd[1]: systemd-tmpfiles-clean.service: Succeeded.
Mar 31 16:45:47 systemd[1]: Finished Cleanup of Temporary Directories.
Mar 31 16:45:47 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:45:47 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:45:47 kernel: audit: type=1130 audit(1617201947.492:140): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:45:47 kernel: audit: type=1131 audit(1617201947.492:141): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:46:17 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:46:17 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:48:35 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:48:35 rtkit-daemon[1166]: Supervising 8 threads of 5 processes of 1 users.
Mar 31 16:53:11 kernel: igb 0000:05:00.0 enp5s0: igb: enp5s0 NIC Link is Down
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.7366] device (enp5s0): state change: activated -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed')
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.8020] dhcp4 (enp5s0): canceled DHCP transaction, DHCP client pid 2764
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.8020] dhcp4 (enp5s0): state changed extended -> done
Mar 31 16:53:17 NetworkManager[598]: <info>  [1617202397.8122] manager: NetworkManager state is now DISCONNECTED
Mar 31 16:53:17 dbus-daemon[597]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.2' (uid=0 pid=598 comm="/usr/bin/NetworkManager --no-daemon ")
Mar 31 16:53:17 systemd[1]: Starting Network Manager Script Dispatcher Service...
Mar 31 16:53:17 dbus-daemon[597]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Mar 31 16:53:17 systemd[1]: Started Network Manager Script Dispatcher Service.
Mar 31 16:53:17 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:53:17 kernel: audit: type=1130 audit(1617202397.815:142): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2505] device (enp5s0): carrier: link connected
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2507] device (enp5s0): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2517] policy: auto-activating connection 'Wired connection 1' (1d3b137a-b410-3b98-9fdb-76a7fd183bf3)
Mar 31 16:53:24 kernel: igb 0000:05:00.0 enp5s0: igb: enp5s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2521] device (enp5s0): Activation: starting connection 'Wired connection 1' (1d3b137a-b410-3b98-9fdb-76a7fd183bf3)
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2522] device (enp5s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2525] manager: NetworkManager state is now CONNECTING
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2527] device (enp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2534] device (enp5s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2537] dhcp4 (enp5s0): activation: beginning transaction (timeout in 45 seconds)
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.2553] dhcp4 (enp5s0): dhclient started with pid 4682
Mar 31 16:53:24 dhclient[4682]: DHCPREQUEST for 192.168.1.36 on enp5s0 to 255.255.255.255 port 67
Mar 31 16:53:24 dhclient[4682]: DHCPACK of 192.168.1.36 from 192.168.1.1
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   address 192.168.1.36
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   plen 24 (255.255.255.0)
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   gateway 192.168.1.1
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   lease time 86400
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   nameserver '192.168.1.1'
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0):   domain name 'home'
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3143] dhcp4 (enp5s0): state changed unknown -> extended, address=192.168.1.36
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3147] device (enp5s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3160] device (enp5s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3161] device (enp5s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3162] manager: NetworkManager state is now CONNECTED_LOCAL
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3167] manager: NetworkManager state is now CONNECTED_SITE
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3167] policy: set 'Wired connection 1' (enp5s0) as default for IPv4 routing and DNS
Mar 31 16:53:24 dhclient[4682]: bound to 192.168.1.36 -- renewal in 40790 seconds.
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3268] device (enp5s0): Activation: successful, device activated.
Mar 31 16:53:24 NetworkManager[598]: <info>  [1617202404.3775] manager: NetworkManager state is now CONNECTED_GLOBAL
Mar 31 16:53:27 systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Mar 31 16:53:27 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:53:27 kernel: audit: type=1131 audit(1617202407.602:143): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:34 audit[5012]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=1 pid=5012 comm="akonadi_imap_re" exe="/usr/bin/akonadi_imap_resource" sig=11 res=1
Mar 31 16:54:34 kernel: akonadi_imap_re[5012]: segfault at 40 ip 00007f0465e345bc sp 00007ffeacf9e2c0 error 4 in libKF5AkonadiCore.so.5.16.3[7f0465e0f000+121000]
Mar 31 16:54:34 kernel: Code: c4 08 4c 89 e7 5b 5d 41 5c 41 5d e9 fe 12 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 54 31 d2 49 89 f4 55 48 89 fd 53 <48> 8b 1f 8b 43 20 85 c0 74 0e 8b 73 24 4c 89 e7 ff 15 86 6c 17 00
Mar 31 16:54:34 kernel: audit: type=1701 audit(1617202474.944:144): auid=1000 uid=1000 gid=1000 ses=1 pid=5012 comm="akonadi_imap_re" exe="/usr/bin/akonadi_imap_resource" sig=11 res=1
Mar 31 16:54:34 systemd[1]: Created slice system-systemd\x2dcoredump.slice.
Mar 31 16:54:34 audit: BPF prog-id=28 op=LOAD
Mar 31 16:54:34 audit: BPF prog-id=29 op=LOAD
Mar 31 16:54:34 systemd[1]: Started Process Core Dump (PID 5445/UID 0).
Mar 31 16:54:34 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-5445-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:34 kernel: audit: type=1334 audit(1617202474.957:145): prog-id=28 op=LOAD
Mar 31 16:54:34 kernel: audit: type=1334 audit(1617202474.957:146): prog-id=29 op=LOAD
Mar 31 16:54:34 kernel: audit: type=1130 audit(1617202474.957:147): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-5445-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:35 systemd-coredump[5446]: Process 5012 (akonadi_imap_re) of user 1000 dumped core.
                                        

Mar 31 16:54:35 systemd[1]: systemd-coredump@0-5445-0.service: Succeeded.
Mar 31 16:54:35 kernel: audit: type=1131 audit(1617202475.097:148): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-5445-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:35 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-5445-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:35 audit: BPF prog-id=29 op=UNLOAD
Mar 31 16:54:35 audit: BPF prog-id=28 op=UNLOAD
Mar 31 16:54:35 kernel: audit: type=1334 audit(1617202475.277:149): prog-id=29 op=UNLOAD
Mar 31 16:54:35 kernel: audit: type=1334 audit(1617202475.277:150): prog-id=28 op=UNLOAD
Mar 31 16:54:40 audit[5455]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=1 pid=5455 comm="akonadi_imap_re" exe="/usr/bin/akonadi_imap_resource" sig=11 res=1
Mar 31 16:54:40 kernel: akonadi_imap_re[5455]: segfault at 40 ip 00007f99e67a35bc sp 00007fff4de6d270 error 4 in libKF5AkonadiCore.so.5.16.3[7f99e677e000+121000]
Mar 31 16:54:40 kernel: Code: c4 08 4c 89 e7 5b 5d 41 5c 41 5d e9 fe 12 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 54 31 d2 49 89 f4 55 48 89 fd 53 <48> 8b 1f 8b 43 20 85 c0 74 0e 8b 73 24 4c 89 e7 ff 15 86 6c 17 00
Mar 31 16:54:40 kernel: audit: type=1701 audit(1617202480.584:151): auid=1000 uid=1000 gid=1000 ses=1 pid=5455 comm="akonadi_imap_re" exe="/usr/bin/akonadi_imap_resource" sig=11 res=1
Mar 31 16:54:40 audit: BPF prog-id=30 op=LOAD
Mar 31 16:54:40 audit: BPF prog-id=31 op=LOAD
Mar 31 16:54:40 systemd[1]: Started Process Core Dump (PID 5475/UID 0).
Mar 31 16:54:40 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@1-5475-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:40 kernel: audit: type=1334 audit(1617202480.590:152): prog-id=30 op=LOAD
Mar 31 16:54:40 kernel: audit: type=1334 audit(1617202480.590:153): prog-id=31 op=LOAD
Mar 31 16:54:40 kernel: audit: type=1130 audit(1617202480.590:154): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@1-5475-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:40 systemd-coredump[5476]: Process 5455 (akonadi_imap_re) of user 1000 dumped core.
                                        
Mar 31 16:54:40 systemd[1]: systemd-coredump@1-5475-0.service: Succeeded.
Mar 31 16:54:40 kernel: audit: type=1131 audit(1617202480.720:155): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@1-5475-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:40 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@1-5475-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Mar 31 16:54:40 audit: BPF prog-id=31 op=UNLOAD
Mar 31 16:54:40 audit: BPF prog-id=30 op=UNLOAD
Mar 31 16:54:40 kernel: audit: type=1334 audit(1617202480.874:156): prog-id=31 op=UNLOAD
Mar 31 16:54:40 kernel: audit: type=1334 audit(1617202480.874:157): prog-id=30 op=UNLOAD

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#4 2021-03-31 20:05:23

seth
Member
Registered: 2012-09-03
Posts: 19,799

Re: [Solved] NetworkManager disconnects sporadically and randomly

The link drops out of nowhere.

#1 cable
#2 the plugs are also part of the cable
#3 on both ends…
#4 sure it's not the cable?

Can you check the router logs and/or simply reboot it?

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#5 2021-04-06 15:51:35

saramkon
Member
Registered: 2021-03-31
Posts: 3

Re: [Solved] NetworkManager disconnects sporadically and randomly

Thanks, I changed the cable a few days ago and did not have any problems since. Strange, since I had the same cable for a year without problems, but maybe I damaged it, when I build a new pc.

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