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#1 2025-04-30 21:52:55

azerb123
Member
Registered: 2025-04-30
Posts: 2

[SOLVED] dhcp lease lost, link down, lost carrier

I don't understand this issue, I've been coming across lots of threads lately speaking on the issue I'm getting and all of them seem to fix it but myself.

I am using the R8125 driver and I have blacklisted the R8169, I added parameters to my boot such as:
1. pcie_aspm=off pcie_port_pm=off
2. pcie_port_pm=off pcie_aspm.policy=performance
3. pcie_aspm=performance pcie_port_pm=off

but this does not seem to be it for me, I have also shared my journalctl and been told many times it's a "power issue" which makes sense to me. I have checked my bios but I'm not sure beyond what I've already changed.

I do notice this issue when I go to download something or browse a page on the internet that loads lots of resources.

Driver: r8125
version: 9.015.00-NAPI
firmware-version:
expansion-rom-version:
bus-info: 0000:0e:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no

    Link partner advertised pause frame use: Symmetric Receive-only
    Link partner advertised auto-negotiation: Yes
    Link partner advertised FEC modes: Not reported
    Speed: 2500Mb/s
    Duplex: Full
    Auto-negotiation: on
    Port: Twisted Pair
    PHYAD: 0
    Transceiver: internal
    MDI-X: on
netlink error: Operation not permitted
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
    Link detected: yes

Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller.

I have tested on Fedora, Arch, Ubuntu, Debian.. it follows me everywhere. When I am on Windows it just works fine, which I hate.

Last edited by azerb123 (2025-05-01 06:32:44)

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#2 2025-05-01 06:31:13

azerb123
Member
Registered: 2025-04-30
Posts: 2

Re: [SOLVED] dhcp lease lost, link down, lost carrier

SOLVED:
sudo ethtool --show-eee en0
sudo ethtool --set-eee en0 eee off

next to ensure it stays fixed:
sudo vim /etc/systemd/system/disable-eee.service

```
[Unit]
Description=Disable Energy-Efficient Ethernet for en0
After=network.target

[Service]
Type=oneshot
ExecStart=/usr/sbin/ethtool --set-eee en0 eee off
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target
```

Last edited by azerb123 (2025-05-01 06:32:10)

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