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Pcfan5

Member

Registered: 2023-09-23

Posts: 3  

LAN without conection - RTL810XE PCI Express Driver r8169

Hello, I am new at the forum, I have searched for this issue before posting. I've also been reading a lot.
I am able to connect to the Internet with a 1.5 mtrs RJ45 cord.
However when I try with a 30 mtrs cords, connection is impossible.  (the same cord works perfectly with other computers a laptop with an intel i5 processor and a netbook with an Atom processor)
The system detects it but I get a generic IP for IPV4 is: 169.254.115.247 (sometimes I mannaged to get the correct one)
I have change everything I could in Connman.
I cannot connect to internet. I wonder if there is an incompatibility regarding the processor and the long cord.
I have checked on the Intel web site but the network device is quite old and there are only drivers for Windows XP

This is my system

System:
  Kernel: 6.1.0-12-amd64 arch: x86_64 bits: 64 Desktop: LXDE v: 0.10.1
    Distro: Devuan GNU/Linux 5 (daedalus)
Machine:
  Type: Desktop Mobo: MICRO-STAR model: G31TM-P21 (MS-7529) v: 1.0
    serial: <superuser required> BIOS: American Megatrends v: 4.7
    date: 07/28/2010
CPU:
  Info: dual core model: Pentium E5300 bits: 64 type: MCP cache: L2: 2 MiB
  Speed (MHz): avg: 1203 min/max: 1203/2603 cores: 1: 1203 2: 1203
Graphics:
  Device-1: Intel 82G33/G31 Express Integrated Graphics driver: i915 v: kernel
  Device-2: Brooktree Bt878 Video Capture driver: bttv v: 0.9.19
  Display: x11 server: X.Org v: 1.21.1.7 driver: X: loaded: intel
    unloaded: fbdev,modesetting,vesa dri: i915 gpu: i915
    resolution: 1280x1024~60Hz
  API: OpenGL v: 2.1 Mesa 22.3.6 renderer: i915 (: G33)
Audio:
  Device-1: Intel NM10/ICH7 Family High Definition Audio driver: snd_hda_intel
  Device-2: Brooktree Bt878 Video Capture driver: bttv
  Device-3: Brooktree Bt878 Audio Capture driver: N/A
  API: ALSA v: k6.1.0-12-amd64 status: kernel-api
  Server-1: PulseAudio v: 16.1 status: active
Network:
  Device-1: Realtek RTL810xE PCI Express Fast Ethernet driver: r8169
  IF: eth0 state: down mac: <filter>
  Device-2: TP-Link TL-WN722N v2/v3 [Realtek RTL8188EUS] type: USB
    driver: r8188eu
  IF: wlx503eaa3d9c5e state: up mac: <filter>
Drives:
  Local Storage: total: 326.91 GiB used: 145.53 GiB (44.5%)
  ID-1: /dev/sda vendor: Samsung model: HD322HJ size: 298.09 GiB
  ID-2: /dev/sdb type: USB vendor: Kingston model: DataTraveler 3.0
    size: 28.82 GiB
Partition:
  ID-1: / size: 29.76 GiB used: 6.4 GiB (21.5%) fs: ext4 dev: /dev/sda1
  ID-2: /home size: 258.49 GiB used: 122.05 GiB (47.2%) fs: ext4
    dev: /dev/sda2
Swap:
  ID-1: swap-1 type: partition size: 4 GiB used: 4.3 MiB (0.1%) dev: /dev/sda3
Sensors:
  System Temperatures: cpu: 47.0 C mobo: N/A
  Fan Speeds (RPM): N/A
Info:
  Processes: 149 Uptime: 1h 33m Memory: 3.81 GiB used: 1.23 GiB (32.2%)
  Shell: Bash inxi: 3.3.26

I cannot provide information regardin "ipconfig" or "lshw" (terminal says: order not found)

On Connman It detects the MAC Address
Everything is in automatic , however by setting things manually it doesn't work either.
I 've reading about a problem with the kernel. Could this be a driver issue? (cord works fine with other computers, and this computer works fine with a shorter cord )

this is my etc/network/interfaces  file

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp
# This is an autoconfigured IPv6 interface
iface eth0 inet6 auto

And here there is a picture from booting screen (after I tried enable/disable LAN controller in BIOS)
https://ibb.co/TM5h96W it takes a lot of time at booting . For installation i used the netinstall iso.

Last edited by Pcfan5 (2023-10-19 16:18:11)

Camtaf

Member

Registered: 2019-11-19

Posts: 436  

Re: LAN without conection - RTL810XE PCI Express Driver r8169

Could just be that particular cable - I occasionally use a 30ft cable without problems, (Devuan/XFCE), & have used a 'coupler' to add an extra 10ft cable also without problems.

Pcfan5

Member

Registered: 2023-09-23

Posts: 3  

Re: LAN without conection - RTL810XE PCI Express Driver r8169

Thank you for you reply . I cankot blame the distro because I have the same problem under several "USB live" distros. 
My main concern is it maybe aproblem in the computer since this same long cable works in oyher computers.

GlennW

Member

From: Brisbane, Australia

Registered: 2019-07-18

Posts: 644  

Re: LAN without conection - RTL810XE PCI Express Driver r8169

The system is quite old (not that old it NOT should work) and may not supply enough power for a longer cable.

Have you checked your power supply specs?
just a thought...

is the eth chip auto x-over (cable) detect?

Last edited by GlennW (2023-10-20 00:30:09)

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ExposeGlobalistsMadness

Member

Registered: 2023-08-17

Posts: 41  

Re: LAN without conection - RTL810XE PCI Express Driver r8169

I cannot provide information regardin "ipconfig" or "lshw" (terminal says: order not found)

You probably mean "command not found", and try ifconfig instead (not ipconfig).

You could try installing lshw:

sudo apt install lshw

Someone else would have to help you with your topic, because that's all I can do.

Pcfan5

Member

Registered: 2023-09-23

Posts: 3  

Re: LAN without conection - RTL810XE PCI Express Driver r8169

Thank you very much!. Yes, I mean all of that. (My system is in spanish so I made a rough translation).