Hello Lemmy,
Im trying to troubleshoot a connection issue to my laptop which is connect using the buildin ethernet port. The connection drops sometimes for a few minutes and then im able to connect again.
This is the port being used:
k3s-alpine-lap-6:~# lspci -nn | grep -i ethernet
0000:01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 16)
Some information about the drivers being used:
k3s-alpine-lap-6:~# ethtool -i eth0
driver: r8169
version: 6.12.76-0-lts
firmware-version: rtl8168h-2_0.0.2 02/26/15
expansion-rom-version:
bus-info: 0000:01:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
Some information i found using dmesg:
[ 10.535868] Bridge firewalling registered
[ 29.478495] usb 3-1: USB disconnect, device number 2
[ 30.635978] atkbd serio0: Unknown key pressed (translated set 2, code 0xd8 on isa0060/serio0).
[ 30.635990] atkbd serio0: Use 'setkeycodes e058 <keycode>' to make it known.
[ 30.645244] atkbd serio0: Unknown key released (translated set 2, code 0xd8 on isa0060/serio0).
[ 30.645256] atkbd serio0: Use 'setkeycodes e058 <keycode>' to make it known.
[ 55.836493] EXT4-fs (sda): mounted filesystem f9742482-7e09-4460-a10d-81c5f5abaf23 r/w with ordered data mode. Quota mode: none.
[ 347.743005] Initializing XFRM netlink socket
[ 354.759146] eth0: renamed from tmp5fca0
[ 354.898482] eth0: renamed from tmp375a5
[ 354.930148] eth0: renamed from tmpaf7f3
[ 354.970131] eth0: renamed from tmpc035d
[ 356.883835] eth0: renamed from tmp68492
[ 518.679868] Key type trusted registered
[ 518.745372] Key type encrypted registered
[ 518.750554] device-mapper: uevent: version 1.0.3
[ 518.750614] device-mapper: ioctl: 4.48.0-ioctl (2023-03-01) initialised: dm-devel@lists.linux.dev
[ 599.682490] hrtimer: interrupt took 24965 ns
[ 832.545952] r8169 0000:01:00.0 eth0: Link is Down
[ 845.527825] r8169 0000:01:00.0 eth0: Link is Up - 100Mbps/Full - flow control off
[ 846.467804] r8169 0000:01:00.0 eth0: Link is Down
[ 848.089514] r8169 0000:01:00.0 eth0: Link is Up - 100Mbps/Full - flow control off
[ 2407.857541] r8169 0000:01:00.0 eth0: Link is Down
[ 2420.398450] r8169 0000:01:00.0 eth0: Link is Up - 100Mbps/Full - flow control off
Im not knowledgeable about this types of issues so im not even sure the driver is the issue.
Does someone have a simular experience or knows what could cause this issue i would love to hear it! Have a great day!
(Im sorry my post isn’t very specific about the issue but im not sure how i could better start troubleshooting this)


try running off a fedora usb stick long enough for this issue to have been triggered in alpine to confirm if this is the case without wiping out your installation.
Oh that is actually a great idea thanks!
i recommended this because i tried it once and it did work, however i learned the hard way that the image in the usb stick is different than the installed image and i had to use the usb stick’s image to find the exact module and configuration so that i could duplicate it on the installed image…fyi
and it too was a realtek nic. lol