On Sun, 2020-02-09 at 23:39 +1030, Tim via users wrote: > On Sun, 2020-02-09 at 08:05 -0400, George N. White III wrote: > > Check components near the ethernet port for signs of damage. > > Though there's every chance that there won't be any visible signs. > Fried electronic parts don't have to be charred. > > I have to periodically replace ethernet switches, and/or network cards > on computers that are connected between buildings. There can be a > significant voltage difference on the mains wiring between buildings, > and even between circuits within a building. > > It seems that few ethernet interfaces bother to use galvanic isolating > transformers, or opto-coupling, so they're vulnerable to voltages on > earthing. > > Static shock is also a posibility (the inevitable walking across the > carpet and zapping things, or people wearing static electricity > generating clothing). > > Our recent computers have motherboard ethernet ports, I don't fancy the > chances that the ethernet port being zapped will be limited to just the > ethernet port components. The previous dead network cards didn't just > not network, they would hang the PC, prevent booting, and cause random > crashes. Yes, I'm fairly sceptical as to this being the explanation. This is a home desktop with onboard Ethernet and the router is on the same mains circuit in the same room. The mobo is showing no other issues though it's about 6 years old so I'm planning on getting a new one this year anyway, mostly because it has no NVMe slots and can only support 16GB of RAM. If the problem persists with the new NIC I'll know to look elsewhere. Phase of the moon, maybe. poc _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
