I'm having issues with all my Ubuntu machines. The internet connection will sporadically drop for a few minutes and it happens frequently like every 5-10 min. It will reconnect on it's own or I can reboot my Google Nest Wifi mesh and the internet will reconnect that way too. Meanwhile I have internet on my phone and other devices. I looked at sudo watch netstat -tulnep and I see that my Nordvpn which is using openvpn will have a very high number in the Send-Q column. Usually when that number is very high that's when my internet stops working. After that number goes down to 0 the internet works again. I have no clue what's causing this or how to even fix it. Would appreciate any help with this, thank you.
My ISP is Verizon Fios and I have this issue on Wifi and wired connection. It makes no difference if I'm connecting to wifi from my mesh network or from the Verizon router. Both the laptop and desktop are running 20.04.1-Ubuntu kernel release 5.13.0-28-generic and airplane mode is off.
Here's my ifconfig before connecting to vpn:
br-ccc1c02cedb8: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.18.0.1 netmask 255.255.0.0 broadcast 172.18.255.255
inet6 fe80::42:7dff:fe70:cf39 prefixlen 64 scopeid 0x20<link>
ether 02:42:7d:70:cf:39 txqueuelen 0 (Ethernet)
RX packets 734 bytes 779426 (779.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 897 bytes 142075 (142.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp110s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.182 netmask 255.255.255.0 broadcast 192.168.1.255
ether 80:fa:5b:63:b3:72 txqueuelen 1000 (Ethernet)
RX packets 1256347 bytes 1736731001 (1.7 GB)
RX errors 727 dropped 0 overruns 727 frame 0
TX packets 324663 bytes 52749976 (52.7 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18
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 (Local Loopback)
RX packets 54424 bytes 8231085 (8.2 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 54424 bytes 8231085 (8.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
and ifconfig after connecting to vpn:
br-ccc1c02cedb8: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.18.0.1 netmask 255.255.0.0 broadcast 172.18.255.255
ether 02:42:7d:70:cf:39 txqueuelen 0 (Ethernet)
RX packets 734 bytes 779426 (779.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 897 bytes 142075 (142.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp110s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.182 netmask 255.255.255.0 broadcast 192.168.1.255
ether 80:fa:5b:63:b3:72 txqueuelen 1000 (Ethernet)
RX packets 1258324 bytes 1738613517 (1.7 GB)
RX errors 738 dropped 0 overruns 738 frame 0
TX packets 325864 bytes 53002270 (53.0 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 55408 bytes 8332617 (8.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 55408 bytes 8332617 (8.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500
inet 10.8.0.23 netmask 255.255.0.0 destination 10.8.0.23
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC)
RX packets 190 bytes 62389 (62.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 279 bytes 41366 (41.3 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
In the meantime the only thing I can do to solve this problem is restart the router.
After doing sudo journalctl -b 0 -u NetworkManager as @waltinator suggested I get this output:
-- Logs begin at Tue 2021-11-23 16:13:14 EST, end at Mon 2022-02-07 13:44:38 EST. --
Feb 07 09:24:17 Sky-X4C systemd[1]: Starting Network Manager...
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.4101] NetworkManager (version 1.22.10) is starting... (for the first time)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.4102] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 20-connectivity-ubuntu.conf, no-mac-addr-change.conf) (ru>
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.4241] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
Feb 07 09:24:17 Sky-X4C systemd[1]: Started Network Manager.
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.4381] manager[0x564b4c7c1030]: monitoring kernel firmware directory '/lib/firmware'.
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.4382] monitoring ifupdown state file '/run/network/ifstate'.
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5558] hostname: hostname: using hostnamed
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5558] hostname: hostname changed from (none) to "Sky-X4C"
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5561] dns-mgr[0x564b4c7ae290]: init: dns=systemd-resolved rc-manager=symlink, plugin=systemd-resolved
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5569] rfkill0: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1d.4/0000:71:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5576] manager[0x564b4c7c1030]: rfkill: Wi-Fi hardware radio set enabled
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5577] manager[0x564b4c7c1030]: rfkill: WWAN hardware radio set enabled
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5612] Loaded device plugin: NMWifiFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-wifi.so)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5639] Loaded device plugin: NMTeamFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-team.so)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5655] Loaded device plugin: NMWwanFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-wwan.so)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5668] Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-bluetooth.so)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5674] Loaded device plugin: NMAtmManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-adsl.so)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5676] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state file
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5677] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5678] manager: Networking is enabled by state file
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5678] dhcp-init: Using DHCP client 'internal'
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5694] settings: Loaded settings plugin: ifupdown ("/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-settings-plugin-ifupdown.so")
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5694] settings: Loaded settings plugin: keyfile (internal)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5694] ifupdown: management mode: unmanaged
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <warn> [1644243857.5696] ifupdown: interfaces file /etc/network/interfaces doesn't exist
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5813] device (lo): carrier: link connected
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5815] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5822] manager: (enp110s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5837] settings: (enp110s0): created default wired connection 'Wired connection 1'
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5855] device (enp110s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.5999] device (wlp113s0): driver supports Access Point (AP) mode
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.6003] manager: (wlp113s0): new 802.11 Wi-Fi device (/org/freedesktop/NetworkManager/Devices/3)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.6012] device (wlp113s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <warn> [1644243857.8021] Error: failed to open /run/network/ifstate
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8075] modem-manager: ModemManager available
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8078] supplicant: wpa_supplicant running
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8078] device (wlp113s0): supplicant interface state: init -> starting
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8827] sup-iface[0x564b4c7d5920,wlp113s0]: supports 5 scan SSIDs
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8830] device (wlp113s0): supplicant interface state: starting -> ready
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8831] Wi-Fi P2P device controlled by interface wlp113s0 created
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8833] manager: (p2p-dev-wlp113s0): new 802.11 Wi-Fi P2P device (/org/freedesktop/NetworkManager/Devices/4)
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8835] device (p2p-dev-wlp113s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8840] device (p2p-dev-wlp113s0): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'managed')
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <info> [1644243857.8842] device (wlp113s0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
Feb 07 09:24:17 Sky-X4C NetworkManager[1436]: <warn> [1644243857.8859] sup-iface: failed to cancel p2p connect: P2P cancel failed
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8056] policy: auto-activating connection 'My Router' (b91f71e2-d4f5-4854-8a55-c7f5ecc659da)
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8059] device (wlp113s0): Activation: starting connection 'My Router' (b91f71e2-d4f5-4854-8a55-c7f5ecc659da)
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8060] device (wlp113s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8062] manager: NetworkManager state is now CONNECTING
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8064] device (wlp113s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8066] device (wlp113s0): Activation: (wifi) access point 'My Router' has security, but secrets are required.
Feb 07 09:24:20 Sky-X4C NetworkManager[1436]: <info> [1644243860.8066] device (wlp113s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
