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burny02

Member

Registered: 2021-07-01

Posts: 123

Interface random stops working

Hi

I have a network card, a r8169 - Strangely it seems to work for long periods of time, and then after a fresh boot of my machine, just no longer works.
This has happened a few times, and the only way I could seemingly overcome it was to switch the device to another pcie slot - This worked every time - Boot and working again (I've done this a few times)

Any help appreciated

ifconfig on the interface gives me

enp6s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 88:c9:b3:b4:10:6f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

I can see from the lspci -k that the driver is loaded

06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. Device 8126 (rev 01)
	Subsystem: Realtek Semiconductor Co., Ltd. Device 0123
	Kernel driver in use: r8169
	Kernel modules: r8169

Here is dmesg

[    9.933575] RTL8126A-internal 5Gbps PHY r8169-0-600:00: attached PHY driver (mii_bus:phy_addr=r8169-0-600:00, irq=MAC)
[   13.313852] RTL8126A-internal 5Gbps PHY r8169-0-600:00: phy_poll_reset failed: -110
[   13.344019] r8169 0000:06:00.0 enp6s0: Link is Down
[   17.154410] igb 0000:08:00.0 enp8s0: igb: enp8s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX

And journalctl:

kernel: RTL8126A-internal 5Gbps PHY r8169-0-600:00: phy_poll_reset failed: -110

burny02

Member

Registered: 2021-07-01

Posts: 123

Re: Interface random stops working

Anyone any ideas?

Things I have subsequently tried are:

Disabling aspm
Mainline & lts kernel
r8126-dksm instead of kernel
rmmod/Modprobe after boot
reinstall firmware rtl_folder with linux-firmware package

Could be firmware related...

[    8.729281] r8169 0000:04:00.0 eth0: RTL8126A, 88:c9:b3:b4:10:6f, XID 649, IRQ 124
[    8.729285] r8169 0000:04:00.0 eth0: jumbo features [frames: 9194 bytes, tx checksumming: ko]
[   10.033547] RTL8126A-internal 5Gbps PHY r8169-0-400:00: attached PHY driver (mii_bus:phy_addr=r8169-0-400:00, irq=MAC)
[   13.357132] RTL8126A-internal 5Gbps PHY r8169-0-400:00: r8169_apply_firmware failed: -110
[   13.963813] RTL8126A-internal 5Gbps PHY r8169-0-400:00: phy_poll_reset failed: -11

Last edited by burny02 (2025-03-15 11:58:07)

seth

Member

Registered: 2012-09-03

Posts: 62,873

Re: Interface random stops working

the only way I could seemingly overcome it was to switch the device to another pcie slot

Is there a parallel windows installation?

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burny02

Member

Registered: 2021-07-01

Posts: 123

Re: Interface random stops working

No, nothing like that

seth

Member

Registered: 2012-09-03

Posts: 62,873

Re: Interface random stops working

You could try https://aur.archlinux.org/packages/r8126-dkms
Do you have a system journal of a boot where the realtek chip didn't respond?

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

burny02

Member

Registered: 2021-07-01

Posts: 123

Re: Interface random stops working

So far, I seem to be having a lot of success with the openwrt driver. Has not happened since .....yet

https://github.com/openwrt/rtl8126