Ubuntu 18.04: Ethernet продолжает отбрасывать случайным образом в течение нескольких секунд

Недавно я установил новый маршрутизатор из-за изменения интернет-провайдера, и с тех пор мое ранее верное соединение Ethernet делает проблемы. Даже при том, что доступ в Интернет и сеть в общих работах, соединение Ethernet перестало работать время от времени в течение нескольких секунд. Это, кажется, происходит предпочтительно при запуске больших/быстрых загрузок, но также произойдет при выполнении вещей не, очевидно, связанная сеть.

Вот мои аппаратные спецификации:

julian@julian-desktop:~$ lspci -nnk | grep -i net -A2
24:00.0 Network controller [0280]: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] [8086:24fb] (rev 10)
    Subsystem: Intel Corporation Device [8086:2110]
    Kernel driver in use: iwlwifi
--
25:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03)
    Subsystem: ASRock Incorporation I211 Gigabit Network Connection [1849:1539]
    Kernel driver in use: igb
    Kernel modules: igb

И ifconfig:

julian@julian-desktop:~$ ifconfig
enp37s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.178.42  netmask 255.255.255.0  broadcast 192.168.178.255
        inet6 fe80::4a89:a9d2:49ca:9df4  prefixlen 64  scopeid 0x20<link>
        ether 70:85:c2:a8:bb:7f  txqueuelen 1000  (Ethernet)
        RX packets 333573  bytes 479511002 (479.5 MB)
        RX errors 2  dropped 0  overruns 0  frame 1
        TX packets 180965  bytes 14125591 (14.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0xf7500000-f751ffff  

enp3s0f0u3c4i2: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 42:33:1a:65:b8:0c  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Lokale Schleife)
        RX packets 6415  bytes 586547 (586.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6415  bytes 586547 (586.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp36s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.42.0.1  netmask 255.255.255.0  broadcast 10.42.0.255
        inet6 fe80::d7d4:24b5:9682:47bb  prefixlen 64  scopeid 0x20<link>
        ether 3c:6a:a7:4e:40:f8  txqueuelen 1000  (Ethernet)
        RX packets 104  bytes 11975 (11.9 KB)
        RX errors 0  dropped 1  overruns 0  frame 0
        TX packets 303  bytes 47366 (47.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

И вот является журнал от/var/log/syslog одним из периодов разъединения:

Apr 15 17:52:46 julian-desktop kernel: [ 1657.601916] igb 0000:25:00.0 enp37s0: igb: enp37s0 NIC Link is Down
Apr 15 17:52:52 julian-desktop wpa_supplicant[1338]: message repeated 21 times: [ wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1]
Apr 15 17:52:52 julian-desktop NetworkManager[1320]: <info>  [1555343572.1914] device (enp37s0): state change: activated -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed')
Apr 15 17:52:52 julian-desktop NetworkManager[1320]: <info>  [1555343572.2074] dhcp4 (enp37s0): canceled DHCP transaction, DHCP client pid 4430
Apr 15 17:52:52 julian-desktop NetworkManager[1320]: <info>  [1555343572.2074] dhcp4 (enp37s0): state changed bound -> done
Apr 15 17:52:52 julian-desktop avahi-daemon[1334]: Withdrawing address record for 192.168.178.42 on enp37s0.
Apr 15 17:52:52 julian-desktop avahi-daemon[1334]: Leaving mDNS multicast group on interface enp37s0.IPv4 with address 192.168.178.42.
Apr 15 17:52:52 julian-desktop avahi-daemon[1334]: Interface enp37s0.IPv4 no longer relevant for mDNS.
Apr 15 17:52:52 julian-desktop avahi-daemon[1334]: Withdrawing address record for fe80::4a89:a9d2:49ca:9df4 on enp37s0.
Apr 15 17:52:52 julian-desktop avahi-daemon[1334]: Leaving mDNS multicast group on interface enp37s0.IPv6 with address fe80::4a89:a9d2:49ca:9df4.
Apr 15 17:52:52 julian-desktop avahi-daemon[1334]: Interface enp37s0.IPv6 no longer relevant for mDNS.
Apr 15 17:52:52 julian-desktop NetworkManager[1320]: <info>  [1555343572.2104] manager: NetworkManager state is now CONNECTED_SITE
Apr 15 17:52:52 julian-desktop NetworkManager[1320]: <info>  [1555343572.2111] manager: NetworkManager state is now CONNECTED_LOCAL
Apr 15 17:52:52 julian-desktop dbus-daemon[1302]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.13' (uid=0 pid=1320 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Apr 15 17:52:52 julian-desktop whoopsie[2042]: [17:52:52] offline
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:52:52 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:52:52 julian-desktop systemd[1]: Starting Network Manager Script Dispatcher Service...
Apr 15 17:52:52 julian-desktop deja-dup-monito[3587]: Source ID 112 was not found when attempting to remove it
Apr 15 17:52:52 julian-desktop gsd-sharing[2454]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit gnome-user-share-webdav.service not loaded.
Apr 15 17:52:52 julian-desktop gsd-sharing[2454]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit rygel.service not loaded.
Apr 15 17:52:52 julian-desktop dbus-daemon[1302]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Apr 15 17:52:52 julian-desktop gsd-sharing[2454]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit gnome-remote-desktop.service not loaded.
Apr 15 17:52:52 julian-desktop systemd[1]: Started Network Manager Script Dispatcher Service.
Apr 15 17:52:52 julian-desktop nm-dispatcher: req:1 'connectivity-change': new request (1 scripts)
Apr 15 17:52:52 julian-desktop nm-dispatcher: req:1 'connectivity-change': start running ordered scripts...
Apr 15 17:52:52 julian-desktop nm-dispatcher: req:2 'down' [enp37s0]: new request (1 scripts)
Apr 15 17:52:52 julian-desktop nm-dispatcher: req:2 'down' [enp37s0]: start running ordered scripts...
Apr 15 17:52:53 julian-desktop wpa_supplicant[1338]: wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1
Apr 15 17:52:53 julian-desktop goa-daemon[2337]: goa_http_client_check() failed: 2 — Fehler beim Auflösen von »kmu.files.cnow.at«: Der Name oder der Dienst ist nicht bekannt
Apr 15 17:52:53 julian-desktop goa-daemon[2337]: /org/gnome/OnlineAccounts/Accounts/account_1547674158_0: Setting AttentionNeeded to TRUE because EnsureCredentials() failed with: Ungültiges Passwort für Benutzer »julian.fesel@inode.at« (goa-error-quark, 0): Rechnername konnte nicht aufgelöst werden (goa-error-quark, 4)
Apr 15 17:52:54 julian-desktop wpa_supplicant[1338]: wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1
Apr 15 17:52:54 julian-desktop goa-daemon[2337]: goa_http_client_check() failed: 2 — Fehler beim Auflösen von »kmu.files.cnow.at«: Der Name oder der Dienst ist nicht bekannt
Apr 15 17:52:55 julian-desktop wpa_supplicant[1338]: wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1
Apr 15 17:53:06 julian-desktop wpa_supplicant[1338]: message repeated 11 times: [ wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1]
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8275] device (enp37s0): carrier: link connected
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8279] device (enp37s0): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8291] policy: auto-activating connection 'Kabelgebundene Verbindung 1'
Apr 15 17:53:06 julian-desktop kernel: [ 1678.238273] igb 0000:25:00.0 enp37s0: igb: enp37s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8307] device (enp37s0): Activation: starting connection 'Kabelgebundene Verbindung 1' (599cf1b6-92de-3ca4-a47a-a9b8f9c1b24f)
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8310] device (enp37s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8313] manager: NetworkManager state is now CONNECTING
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8318] device (enp37s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8325] device (enp37s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8329] dhcp4 (enp37s0): activation: beginning transaction (timeout in 45 seconds)
Apr 15 17:53:06 julian-desktop NetworkManager[1320]: <info>  [1555343586.8347] dhcp4 (enp37s0): dhclient started with pid 4755
Apr 15 17:53:06 julian-desktop dhclient[4755]: DHCPREQUEST of 192.168.178.42 on enp37s0 to 255.255.255.255 port 67 (xid=0x6d294be5)
Apr 15 17:53:07 julian-desktop wpa_supplicant[1338]: wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1
Apr 15 17:53:08 julian-desktop wpa_supplicant[1338]: wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1
Apr 15 17:53:08 julian-desktop goa-daemon[2337]: goa_http_client_check() failed: 2 — Fehler beim Auflösen von »kmu.files.cnow.at«: Der Name oder der Dienst ist nicht bekannt
Apr 15 17:53:08 julian-desktop avahi-daemon[1334]: Joining mDNS multicast group on interface enp37s0.IPv6 with address fe80::4a89:a9d2:49ca:9df4.
Apr 15 17:53:08 julian-desktop avahi-daemon[1334]: New relevant interface enp37s0.IPv6 for mDNS.
Apr 15 17:53:08 julian-desktop avahi-daemon[1334]: Registering new address record for fe80::4a89:a9d2:49ca:9df4 on enp37s0.*.
Apr 15 17:53:09 julian-desktop wpa_supplicant[1338]: wlp36s0: CTRL-EVENT-SCAN-FAILED ret=-95 retry=1
Apr 15 17:53:09 julian-desktop dhclient[4755]: DHCPREQUEST of 192.168.178.42 on enp37s0 to 255.255.255.255 port 67 (xid=0x6d294be5)
Apr 15 17:53:09 julian-desktop dhclient[4755]: DHCPACK of 192.168.178.42 from 192.168.178.1
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1435] dhcp4 (enp37s0):   address 192.168.178.42
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1435] dhcp4 (enp37s0):   plen 24 (255.255.255.0)
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1435] dhcp4 (enp37s0):   gateway 192.168.178.1
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1435] dhcp4 (enp37s0):   lease time 864000
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1435] dhcp4 (enp37s0):   nameserver '192.168.178.1'
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1435] dhcp4 (enp37s0):   domain name 'fritz.box'
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1436] dhcp4 (enp37s0): state changed unknown -> bound
Apr 15 17:53:09 julian-desktop avahi-daemon[1334]: Joining mDNS multicast group on interface enp37s0.IPv4 with address 192.168.178.42.
Apr 15 17:53:09 julian-desktop avahi-daemon[1334]: New relevant interface enp37s0.IPv4 for mDNS.
Apr 15 17:53:09 julian-desktop avahi-daemon[1334]: Registering new address record for 192.168.178.42 on enp37s0.IPv4.
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1456] device (enp37s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Apr 15 17:53:09 julian-desktop dhclient[4755]: bound to 192.168.178.42 -- renewal in 360679 seconds.
Apr 15 17:53:09 julian-desktop whoopsie[2042]: [17:53:09] Cannot reach: https://daisy.ubuntu.com
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1466] device (enp37s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1469] device (enp37s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1471] manager: NetworkManager state is now CONNECTED_LOCAL
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1487] manager: NetworkManager state is now CONNECTED_SITE
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1488] policy: set 'Kabelgebundene Verbindung 1' (enp37s0) as default for IPv4 routing and DNS
Apr 15 17:53:09 julian-desktop NetworkManager[1320]: <info>  [1555343589.1492] device (enp37s0): Activation: successful, device activated.
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:53:09 julian-desktop dbus-daemon[1302]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.13' (uid=0 pid=1320 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Cache geleert
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: lese /etc/resolv.conf
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Benutze Namensserver 127.0.0.53#53
Apr 15 17:53:09 julian-desktop dnsmasq[1846]: Cache geleert

Я вполне уверен, что проблемой является связанная человечность/ПК и что соединительный кабель и маршрутизатор прекрасны. Я пытался использовать то же кабельное соединение с другим компьютером, и там я не испытываю проблем. Я также уже обновил систему, но это не имеет никакого значения.

Я не действительно суперпользователь человечности и отчасти в недоумении о том, как решить/начать решение этой проблемы (за исключением решительных мер как переустановка системы). Сообщите мне, могу ли я обеспечить какую-либо дополнительную информацию.

РЕДАКТИРОВАНИЕ 1 - ДОПОЛНИТЕЛЬНАЯ ИНФОРМАЦИЯ О СИСТЕМЕ:

lshw:

julian@julian-desktop:~$ sudo lshw -C network
  *-network DISABLED        
       description: Wireless interface
       product: Dual Band Wireless-AC 3168NGW [Stone Peak]
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:24:00.0
       logical name: wlp36s0
       version: 10
       serial: 3c:6a:a7:4e:40:f8
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-47-generic firmware=29.1044073957.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:70 memory:f7600000-f7601fff
  *-network
       description: Ethernet interface
       product: I211 Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:25:00.0
       logical name: enp37s0
       version: 03
       serial: 70:85:c2:a8:bb:7f
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.4.0-k duplex=full firmware=0. 4-1 ip=192.168.178.42 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:40 memory:f7500000-f751ffff ioport:f000(size=32) memory:f7520000-f7523fff

dnsmasq:

julian@julian-desktop:~$ dpkg -l *dnsmasq*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
un  dnsmasq        <none>       <none>       (no description available)
ii  dnsmasq-base   2.79-1       amd64        Small caching DNS proxy and DHCP/
un  dnsmasq-base-l <none>       <none>       (no description available)

resolv:

julian@julian-desktop:~$ ls -al /etc/resolv.conf
lrwxrwxrwx 1 root root 39 Okt 19 23:30 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf
julian@julian-desktop:~$ cat /etc/resolv.conf
# This file is managed by man:systemd-resolved(8). Do not edit.
#
# This is a dynamic resolv.conf file for connecting local clients to the
# internal DNS stub resolver of systemd-resolved. This file lists all
# configured search domains.
#
# Run "systemd-resolve --status" to see details about the uplink DNS servers
# currently in use.
#
# Third party programs must not access this file directly, but only through the
# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
# replace this symlink by a static file or a different symlink.
#
# See man:systemd-resolved.service(8) for details about the supported modes of
# operation for /etc/resolv.conf.

nameserver 127.0.0.53
options edns0
search fritz.box