Slow network connection

Hi,
i recently noticed that my network connection is very slow (sometimes it drops down to 5 mbit/s). I am connected via LAN. A reboot or waiting for 5-10 mins usually fixes it but it’s still annoying… Hope you can help

System information:

System:
  Kernel: 5.15.38-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 11.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.15-x86_64
    root=UUID=0b4fea78-6afe-4423-a0a6-10fd7db1e52f rw quiet apparmor=1
    security=apparmor udev.log_priority=3
  Desktop: Xfce v: 4.16.0 tk: Gtk v: 3.24.29 info: xfce4-panel wm: xfwm
    v: 4.16.1 vt: 2 dm: LightDM v: 1.30.0 Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop Mobo: Micro-Star model: H410M PRO (MS-7C89) v: 1.1
    serial: <superuser required> UEFI: American Megatrends v: F.20
    date: 06/10/2020
Battery:
  Message: No system battery data found. Is one present?
Memory:
  RAM: total: 15.56 GiB used: 5.51 GiB (35.4%)
  RAM Report:
    permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Core i7-10700F bits: 64 type: MT MCP arch: Comet Lake
    family: 6 model-id: 0xA5 (165) stepping: 5 microcode: 0xEE
  Topology: cpus: 1x cores: 8 tpc: 2 threads: 16 smt: enabled cache:
    L1: 512 KiB desc: d-8x32 KiB; i-8x32 KiB L2: 2 MiB desc: 8x256 KiB
    L3: 16 MiB desc: 1x16 MiB
  Speed (MHz): avg: 2900 min/max: 800/4800 scaling: driver: intel_cpufreq
    governor: schedutil cores: 1: 2900 2: 2900 3: 2900 4: 2900 5: 2900 6: 2900
    7: 2900 8: 2900 9: 2900 10: 2900 11: 2900 12: 2900 13: 2900 14: 2900
    15: 2900 16: 2900 bogomips: 92838
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
    arch_capabilities arch_perfmon art avx avx2 bmi1 bmi2 bts clflush clflushopt
    cmov constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts
    ept ept_ad erms est f16c flexpriority flush_l1d fma fpu fsgsbase fxsr ht
    ibpb ibrs ibrs_enhanced ida intel_pt invpcid invpcid_single lahf_lm lm mca
    mce md_clear mmx monitor movbe mpx msr mtrr nonstop_tsc nopl nx ospke pae
    pat pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pku pln pni popcnt pse pse36
    pts rdrand rdseed rdtscp rep_good sdbg sep smap smep ss ssbd sse sse2
    sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc tsc_adjust
    tsc_deadline_timer vme vmx vnmi vpid x2apic xgetbv1 xsave xsavec xsaveopt
    xsaves xtopology xtpr
  Vulnerabilities:
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: spec_store_bypass
    mitigation: Speculative Store Bypass disabled via prctl and seccomp
  Type: spectre_v1
    mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 status: Vulnerable: eIBRS with unprivileged eBPF
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA TU106 [GeForce RTX 2060 SUPER] vendor: Micro-Star MSI
    driver: nvidia v: 510.68.02 alternate: nouveau,nvidia_drm non-free: 515.xx+
    status: current (as of 2022-05) arch: Turing pcie: gen: 2 speed: 5 GT/s
    lanes: 16 link-max: gen: 3 speed: 8 GT/s bus-ID: 01:00.0
    chip-ID: 10de:1f06 class-ID: 0300
  Device-2: Sunplus Innovation FHD Camera Microphone type: USB
    driver: snd-usb-audio,uvcvideo bus-ID: 1-5.3.1:6 chip-ID: 1bcf:28c4
    class-ID: 0102 serial: <filter>
  Display: x11 server: X.Org v: 21.1.3 compositor: xfwm v: 4.16.1 driver: X:
    loaded: nvidia gpu: nvidia display-ID: :0.0 screens: 1
  Screen-1: 0 s-res: 3440x1440 s-dpi: 96 s-size: 910x381mm (35.83x15.00")
    s-diag: 987mm (38.84")
  Monitor-1: HDMI-0 res: 3440x1440 dpi: 107 size: 819x346mm (32.24x13.62")
    diag: 889mm (35") modes: N/A
  Message: Unable to show GL data. Required tool glxinfo missing.
Audio:
  Device-1: Intel Comet Lake PCH-V cAVS vendor: Micro-Star MSI
    driver: snd_hda_intel v: kernel alternate: snd_sof_pci_intel_cnl
    bus-ID: 00:1f.3 chip-ID: 8086:a3f0 class-ID: 0403
  Device-2: NVIDIA TU106 High Definition Audio vendor: Micro-Star MSI
    driver: snd_hda_intel v: kernel pcie: gen: 2 speed: 5 GT/s lanes: 16
    link-max: gen: 3 speed: 8 GT/s bus-ID: 01:00.1 chip-ID: 10de:10f9
    class-ID: 0403
  Device-3: Sunplus Innovation FHD Camera Microphone type: USB
    driver: snd-usb-audio,uvcvideo bus-ID: 1-5.3.1:6 chip-ID: 1bcf:28c4
    class-ID: 0102 serial: <filter>
  Device-4: C-Media USB Audio Device type: USB
    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 1-5.3.2:7
    chip-ID: 0d8c:0012 class-ID: 0300
  Sound Server-1: ALSA v: k5.15.38-1-MANJARO running: yes
  Sound Server-2: JACK v: 1.9.21 running: no
  Sound Server-3: PulseAudio v: 15.0 running: yes
  Sound Server-4: PipeWire v: 0.3.51 running: yes
Network:
  Device-1: Intel Ethernet I219-V vendor: Micro-Star MSI driver: e1000e
    v: kernel port: N/A bus-ID: 00:1f.6 chip-ID: 8086:0d55 class-ID: 0200
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel pcie: gen: 2
    speed: 5 GT/s lanes: 1 bus-ID: 04:00.0 chip-ID: 8086:2723 class-ID: 0280
  IF: wlp4s0 state: down mac: <filter>
  WAN IP: <filter>
Bluetooth:
  Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8 bus-ID: 1-7:3
    chip-ID: 8087:0029 class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 1 state: down bt-service: enabled,running
    rfk-block: hardware: no software: yes address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 2.97 TiB used: 1.1 TiB (37.0%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:3 vendor: Samsung model: SSD 980 PRO 1TB
    size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 63.2 Gb/s
    lanes: 4 type: SSD serial: <filter> rev: 3B2QGXA7 temp: 41.9 C scheme: GPT
  ID-2: /dev/nvme1n1 maj-min: 259:0 vendor: Western Digital
    model: PC SN530 SDBPNPZ-512G-1032 size: 476.94 GiB block-size:
    physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD
    serial: <filter> rev: 21111000 temp: 35.9 C scheme: GPT
  ID-3: /dev/sda maj-min: 8:0 vendor: Western Digital
    model: WD10EZEX-22MFCA0 size: 931.51 GiB block-size: physical: 4096 B
    logical: 512 B speed: 6.0 Gb/s type: HDD rpm: 7200 serial: <filter>
    rev: 1A01 scheme: GPT
  ID-4: /dev/sdb maj-min: 8:16 vendor: Apple model: HDD HTS547575A9E384
    size: 698.64 GiB block-size: physical: 4096 B logical: 512 B speed: 3.0 Gb/s
    type: HDD rpm: 5400 serial: <filter> rev: D70F scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 476.64 GiB size: 468.09 GiB (98.21%)
    used: 52.43 GiB (11.2%) fs: ext4 dev: /dev/nvme1n1p2 maj-min: 259:2
    label: N/A uuid: 0b4fea78-6afe-4423-a0a6-10fd7db1e52f
  ID-2: /Data/Data raw-size: 909.11 GiB size: 909.11 GiB (100.00%)
    used: 385.99 GiB (42.5%) fs: ntfs dev: /dev/sda1 maj-min: 8:1 label: Data
    uuid: 78BA6D2EBA6CE9D8
  ID-3: /Data/FotoBackUp raw-size: 698.44 GiB size: 698.44 GiB (100.00%)
    used: 476.51 GiB (68.2%) fs: ntfs dev: /dev/sdb2 maj-min: 8:18
    label: FotoBackUp uuid: 8E8CFBE28CFBC2AF
  ID-4: /Data/Windows raw-size: 930.51 GiB size: 930.51 GiB (100.00%)
    used: 208.28 GiB (22.4%) fs: ntfs dev: /dev/nvme0n1p3 maj-min: 259:6
    label: Windows uuid: 94AC6989AC696728
  ID-5: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 292 KiB (0.1%) fs: vfat dev: /dev/nvme1n1p1 maj-min: 259:1
    label: NO_LABEL uuid: A28E-FE3E
Swap:
  Alert: No swap data was found.
Unmounted:
  ID-1: /dev/nvme0n1p1 maj-min: 259:4 size: 100 MiB fs: vfat label: SYSTEM
    uuid: B669-1AEB
  ID-2: /dev/nvme0n1p2 maj-min: 259:5 size: 128 MiB fs: <superuser required>
    label: N/A uuid: N/A
  ID-3: /dev/nvme0n1p4 maj-min: 259:7 size: 800 MiB fs: ntfs label: N/A
    uuid: 34BA3C23BA3BE052
  ID-4: /dev/sda2 maj-min: 8:2 size: 22.38 GiB fs: ntfs label: BIOS_RVY
    uuid: B6DA6ED5DA6E9203
  ID-5: /dev/sdb1 maj-min: 8:17 size: 200 MiB fs: vfat label: EFI
    uuid: 2860-11F4
USB:
  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 10 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Hub-2: 1-5:2 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s
    power: 100mA chip-ID: 05e3:0608 class-ID: 0900
  Hub-3: 1-5.3:4 info: Hitachi ports: 4 rev: 2.0 speed: 480 Mb/s
    chip-ID: 045b:0209 class-ID: 0900
  Device-1: 1-5.3.1:6 info: Sunplus Innovation FHD Camera Microphone
    type: Video,Audio driver: snd-usb-audio,uvcvideo interfaces: 4 rev: 2.0
    speed: 480 Mb/s power: 500mA chip-ID: 1bcf:28c4 class-ID: 0102
    serial: <filter>
  Device-2: 1-5.3.2:7 info: C-Media USB Audio Device type: Audio,HID
    driver: hid-generic,snd-usb-audio,usbhid interfaces: 4 rev: 1.1
    speed: 12 Mb/s power: 100mA chip-ID: 0d8c:0012 class-ID: 0300
  Device-3: 1-5.3.3:8 info: Logitech Corded Keyboard K280e
    type: Keyboard,HID driver: hid-generic,usbhid interfaces: 2 rev: 1.1
    speed: 1.5 Mb/s power: 98mA chip-ID: 046d:c328 class-ID: 0300
  Device-4: 1-5.3.4:9 info: Logitech G502 SE HERO Gaming Mouse
    type: Mouse,HID driver: hid-generic,usbhid interfaces: 2 rev: 2.0
    speed: 12 Mb/s power: 300mA chip-ID: 046d:c08b class-ID: 0300
    serial: <filter>
  Device-5: 1-7:3 info: Intel AX200 Bluetooth type: Bluetooth driver: btusb
    interfaces: 2 rev: 2.0 speed: 12 Mb/s power: 100mA chip-ID: 8087:0029
    class-ID: e001
  Device-6: 1-8:5 info: Micro Star MYSTIC LIGHT type: HID
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s
    power: 500mA chip-ID: 1462:7c89 class-ID: 0300 serial: <filter>
  Hub-4: 2-0:1 info: Super-speed hub ports: 4 rev: 3.0 speed: 5 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
  Hub-5: 3-0:1 info: Hi-speed hub with single TT ports: 2 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Hub-6: 4-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
  System Temperatures: cpu: 27.8 C mobo: N/A gpu: nvidia temp: 43 C
  Fan Speeds (RPM): N/A gpu: nvidia fan: 47%
Info:
  Processes: 380 Uptime: 10h 6m wakeups: 0 Init: systemd v: 250
  tool: systemctl Compilers: gcc: 11.2.0 clang: 13.0.1 Packages: 1472
  pacman: 1455 lib: 463 flatpak: 9 snap: 8 Shell: Bash v: 5.1.16
  running-in: xfce4-terminal inxi: 3.3.16

can you run “netstat -c -i eno1” in a terminal for some seconds and post the output?
Maybe also “ip -4 -6 route show”
And check the cable (replace by a different one and test).

HP

Sorry for the slow answer. Here is the output of netstat -c -i eno1:

Kernel Interface table
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411868      0   1371 0        208374      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411878      0   1377 0        208374      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411880      0   1377 0        208374      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411889      0   1383 0        208376      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411889      0   1383 0        208376      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411897      0   1389 0        208376      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411901      0   1393 0        208376      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411910      0   1399 0        208379      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411915      0   1399 0        208381      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU
Iface             MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1             1500   411934      0   1405 0        208381      0      0      0 BMRU
lo              65536      530      0      0 0           530      0      0      0 LRU
wlp4s0           1500        4      0      0 0             4      0      0      0 BMU

And here the one of ip -4 -6 route show:

::1 dev lo proto kernel metric 256 pref medium
fe80::/64 dev eno1 proto kernel metric 1024 pref medium

netstat looks ok, no ERRs. But the routing indicates that you don’t have IPv6 enabled, only IPv4. Does your provider still natively support IPv4 and then tunnels? Maybe your internet router gives more insights. Also: how do you see or measure the connection speed?
Can you “ping 8.8.8.8”, what does https://www.breitbandmessung.de/ say?
Are you alone in your home network or could others “steal” bandwidth?

Btw: a nice tool is iptraf-ng to show network statistics.

HP