Hello all again, Further info on my problem, here is a dmesg readout which strikes me as unusual because it names both ethernets in the first place with the same name: eth0, whereas on other dmesg readouts from other machines with multiple ethernets it's always been a different name for each ethernet card, i.e. eth0 and eth1 etc. <snip> [ 0.925002] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded [ 0.925162] r8169 0000:03:00.0: not PCI Express [ 0.925483] r8169 0000:03:00.0 eth0: RTL8169sb/8110sb, 30:b5:c2:05:28:70, XID 10000000, IRQ 20 [ 0.925605] r8169 0000:03:00.0 eth0: jumbo features [frames: 7152 bytes, tx checksumming: ok] [ 0.925853] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported [ 0.925865] ehci-pci 0000:00:1a.0: irq 16, io mem 0xf7238000 [ 0.929154] r8169 0000:03:00.0 enp3s0: renamed from eth0 <snip> [ 1.005911] e1000e 0000:00:19.0 0000:00:19.0 (uninitialized): registered PHC clock 624 [ 1.109277] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) f0:92:1c:f2:8f:6a 625 [ 1.109378] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection 626 [ 1.109486] e1000e 0000:00:19.0 eth0: MAC: 10, PHY: 11, PBA No: 0100FF-0FF 627 [ 1.110291] e1000e 0000:00:19.0 eno1: renamed from eth0 <snip> [ben@til ~]$ uname -a Linux til 4.18.0-2-amd64 #1 SMP Debian 4.18.10-2 (2018-11-02) x86_64 GNU/Linux Is this identity oddness part of the problem, and what could I do about it? ben