Package: linux-image-6.12.48+deb13-amd64 Version: 6.12.48-1 Upgrading kernel to 6.12.48 seems to solve the problem.
lsmod|grep 8169 r8169 126976 0 mdio_devres 12288 1 r8169 libphy 233472 3 r8169,mdio_devres,realtek uname -a Linux player-101 6.12.48+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.48-1 (2025-09-20) x86_64 GNU/Linux cat kern.log |grep r8169 2025-09-26T16:05:53.940936+02:00 player-101 kernel: r8169 0000:01:00.0: enabling device (0000 -> 0003) 2025-09-26T16:05:53.940940+02:00 player-101 kernel: r8169 0000:01:00.0 eth0: RTL8125D, 48:21:0b:76:6b:98, XID 688, IRQ 124 2025-09-26T16:05:53.940946+02:00 player-101 kernel: r8169 0000:01:00.0 eth0: jumbo features [frames: 9194 bytes, tx checksumming: ko] 2025-09-26T16:05:53.941317+02:00 player-101 kernel: Realtek Internal NBASE-T PHY r8169-0-100:00: attached PHY driver (mii_bus:phy_addr=r8169-0-100:00, irq=MAC) 2025-09-26T16:05:53.941318+02:00 player-101 kernel: r8169 0000:01:00.0 eth0: Link is Down 2025-09-26T16:05:53.941319+02:00 player-101 kernel: r8169 0000:01:00.0 eth0: Link is Up - 100Mbps/Full - flow control rx/tx -- Pozdrawiam, Łukasz Szotek, IT Manager InfoBox sp. z o.o. 43-400 Cieszyn, ul. Kraszewskiego 9 tel.: 33 851 06 03 gsm: 506 128 672 http://www.infobox.com.pl
