Realtek Connectivity Issues

General system Kernel, boot, graphics & hardware
1

Hello everyone,

When installing EndeavourOS, I noticed I have the Realtek problem where my NIC will connect just fine sometimes, other times it won’t at all or it does connect but I sit with over 50% packet loss. Wi-Fi works just fine.

Packet Loss Problem Example:

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=2 ttl=60 time=8.51 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=60 time=7.72 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=60 time=7.82 ms
64 bytes from 8.8.8.8: icmp_seq=6 ttl=60 time=8.31 ms

--- 8.8.8.8 ping statistics ---
9 packets transmitted, 4 received, 55.5556% packet loss, time 8091ms
rtt min/avg/max/mdev = 7.721/8.091/8.514/0.330 ms

NIC:

inxi -Na

Network:
Device-1: Intel Cannon Lake PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:a370 class-ID: 0280

Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Hewlett-Packard driver: r8168 v: 8.052.01-NAPI modules: r8169 pcie:
    gen: 1 speed: 2.5 GT/s lanes: 1 port: 3000 bus-ID: 3c:00.0
    chip-ID: 10ec:8168 class-ID: 0200

One thing, I do notice is the card is still using the 8169 module, is that causing the problem? How do I change that?

I have read the wiki as well as the forums and I see that there are issues with the specific NIC. There has been suggestions on forums as well as the wiki to resolve the issue:

  1. Install the r8168 drivers and blacklist r8169 drivers
  2. Disable the firewall to see if that was the issue
  3. Move to the LTS kernel and use those r8168-lts (This seems to have made it worse)
  4. Disable IPv6 to see if that is causing the issue

My problem still persists unfortunately and I am unsure what to do. Is there anything else I am missing or not trying?

I have never experienced this problem before, this machine has run Windows, Ubuntu, Arch and Debian distros before with no connectivity issues at all.

2

Welcome to the forum! :smile:
You seem to have package r8168 installed.
Try uninstalling it and reboot. Does that help?

3

Hi Manuel,

Thank you for the welcome. :smile:

So I ran:

sudo pacman -Rcns r8168

Rebooted and I have stable connectivity, I have rebooted a few times and it seems to be okay now.

When running inxi -Na I see I now get the following output:

  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Hewlett-Packard driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: 3000 bus-ID: 3c:00.0 chip-ID: 10ec:8168 class-ID: 0200

Am I supposed to be on r8169? I understood that r8169 was the issue.

Apologies, I am having a hard time understanding why this seems to have worked lol.

4

The r8169 is the kernel driver which works in most cases. The rest of the cases work with package r8168.

5

Thanks Manuel, It seems I misunderstood. Still quite newish to Linux and bumping my head along the way.

Thanks again for your time.

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6

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