[SOLVED]Linux Mint 21 can't find the network (Windows 10 does)

[IndyDev]

I have a new difficult situation for me. I installed Linux Mint 21 on a Gigabyte 990FX UD3 R5 motherboard with a SanDisk SSD and cannot get the OS to connect to the network (wired connection). Windows 10 machines connect instantaneously to the same network connection. ifconfig shows enp5s0 with no connection (all 0's), so obviously no ping's work (except 127.0.0.1).

Where do I go from here? This is really strange, I have LM 21 on another network (different computer), with no problems at all.

Appreciate any help.

Note: Yes the hardware LED's are correctly blinking showing a connection.

[IndyDev]

ifconfig output:

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enp24s0: flags=4099<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 40:8d:5c:55:fa:f2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0
        RX errors 0  dropped 6884  overruns 0  frame 0
        TX packets 0  bytes 0
        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  (Local Loopback)
	RX packets 0  bytes 0
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lspci output: (relevant section)

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18:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

From this I can see that the network chip is being detected, but for some reason isn't usable.

[hglee]

Where do I go from here?

Appreciate any help.

To start, per Forum rules, kindly post detailed data about your PC hardware and system software.

Plug in all relevant dongles, accessories, and peripherals. Then ...

1. Use the Mint menu system to launch System Reports.
   
2. Click on System information there. Your system details appear.
   
3. At the bottom-right of that window, click on the [Copy] button.
   
4. Your clipboard now contains your PC information text. Open a Reply here, then tap Ctrl-V to paste all the text into it.

Your detailed PC specifications can then be reviewed by others here for diagnostic & remedy suggestions.

[IndyDev]

Code: Select all

System:
  Kernel: 5.15.0-41-generic x86_64 bits: 64 compiler: gcc v: 11.2.0 Desktop: Cinnamon 5.4.8
    tk: GTK 3.24.33 wm: Mutter dm: LightDM Distro: Linux Mint 21 Vanessa base: Ubuntu 22.04 jammy
Machine:
  Type: Desktop System: Gigabyte product: N/A v: N/A serial: <superuser required> Chassis: type: 3
    serial: <superuser required>
  Mobo: Gigabyte model: 990FXA-UD3 R5 v: x.x serial: <superuser required>
    BIOS: American Megatrends v: F2 date: 04/01/2015
Battery:
  Device-1: hidpp_battery_0 model: Logitech K800 serial: <filter> charge: 70% (should be ignored)
    status: Full
CPU:
  Info: 8-core model: AMD FX-8320E bits: 64 type: MT MCP arch: Piledriver rev: 0 cache:
    L1: 384 KiB L2: 8 MiB L3: 8 MiB
  Speed (MHz): avg: 1400 high: 1405 min/max: 1400/3200 boost: enabled cores: 1: 1396 2: 1405
    3: 1401 4: 1395 5: 1403 6: 1404 7: 1403 8: 1399 bogomips: 51435
  Flags: avx ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: AMD Pitcairn PRO [Radeon HD 7850 / R7 265 R9 270 1024SP] vendor: XFX Pine
    driver: radeon v: kernel pcie: speed: 5 GT/s lanes: 16 ports: active: DVI-D-1,DVI-I-1
    empty: DP-1,DP-2,HDMI-A-1 bus-ID: 01:00.0 chip-ID: 1002:6819
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: ati,radeon
    unloaded: fbdev,modesetting,vesa gpu: radeon display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3840x1080 s-dpi: 96
  Monitor-1: DVI-0 mapped: DVI-D-1 pos: primary,left model: Acer G226HQL res: 1920x1080 dpi: 92
    diag: 547mm (21.5")
  Monitor-2: DVI-1 mapped: DVI-I-1 pos: right model: Acer G246HL res: 1920x1080 dpi: 102
    diag: 609mm (24")
  OpenGL: renderer: AMD PITCAIRN (LLVM 13.0.1 DRM 2.50 5.15.0-41-generic) v: 4.5 Mesa 22.0.1
    direct render: Yes
Audio:
  Device-1: AMD SBx00 Azalia vendor: Gigabyte driver: snd_hda_intel v: kernel bus-ID: 00:14.2
    chip-ID: 1002:4383
  Device-2: AMD Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series]
    vendor: XFX Pine driver: snd_hda_intel v: kernel pcie: speed: 5 GT/s lanes: 16 bus-ID: 01:00.1
    chip-ID: 1002:aab0
  Sound Server-1: ALSA v: k5.15.0-41-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Gigabyte driver: r8169
    v: kernel pcie: speed: 2.5 GT/s lanes: 1 port: c000 bus-ID: 05:00.0 chip-ID: 10ec:8168
  IF: enp5s0 state: down mac: <filter>
Drives:
  Local Storage: total: 1.02 TiB used: 113.03 GiB (10.8%)
  ID-1: /dev/sda vendor: SanDisk model: SSD PLUS 1000GB size: 931.51 GiB speed: 6.0 Gb/s
    serial: <filter>
  ID-2: /dev/sdb vendor: PNY model: SSD2SC120G3LC709B121-460P size: 111.79 GiB speed: 6.0 Gb/s
    serial: <filter>
Partition:
  ID-1: / size: 915.32 GiB used: 8.98 GiB (1.0%) fs: ext4 dev: /dev/sda3
  ID-2: /boot/efi size: 511 MiB used: 5.2 MiB (1.0%) fs: vfat dev: /dev/sda1
Swap:
  ID-1: swap-1 type: file size: 2 GiB used: 0 KiB (0.0%) priority: -2 file: /swapfile
Sensors:
  System Temperatures: cpu: 18.2 C mobo: N/A gpu: radeon temp: 51.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: apt: 2061
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http: //packages.linuxmint.com vanessa main upstream import backport
    2: deb http: //archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http: //archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http: //archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http: //security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
Info:
  Processes: 257 Uptime: 21h 54m Memory: 15.59 GiB used: 1.15 GiB (7.4%) Init: systemd v: 249
  runlevel: 5 Compilers: gcc: 11.2.0 alt: 11 Client: Cinnamon v: 5.4.8 inxi: 3.3.13

[IndyDev]

System Reports only lists items to install. Multimedia etc. But it cannot do this because it cannot access a network.

[IndyDev]

Tried to install LM 21 again, but no success. Then stumbled onto a solution. Installed Ubuntu 22.04 directly. Bingo. Network worked. So then I installed LM 21, and I have networking. Why this worked I have no idea. But the situation is resolved.

[hglee]

Tried to install LM 21 again, but no success. Then stumbled onto a solution. Installed Ubuntu 22.04 directly. Bingo. Network worked. So then I installed LM 21, and I have networking. Why this worked I have no idea. But the situation is resolved.

Some subsystems may require a particular initialization, which may put config/status data in non-volatile (permanent or flash) memory.

This is one way, for example, that Windows Fast StartUp can cause grief to Linux on dual-boot systems.

Glad yours worked in favour.

[perk618]

I'm a newbie, and had same problem, the windows 10 network was connecting with Mint 20 but after the update to 21 I got the same network error.

I installed nmap and from the terminal ran

nmap -v -sn -Pn 192.168.1.1 where the address is my router.

This put the system on line and I haven't had the issue since

Hope this is some use