For the past couple years my server has been running without issue; working smoothly through many changes, updates, and hardware swaps. Two days ago I decided to update UNRAID after a steady uptime of ~5 months, but after rebooting I was unable to access the GUI. I attempted to ping the server from within my network, but the IP was unreachable. On the KVM console I have connected to my server, I could see that the correct IPv4 address is being displayed, but within the start-up text I noticed a line midway through that said "device eth0 does not exist." This persisted across multiple restarts of the system, changing the switch, cat6 cable, and directly connecting my PC to the ethernet port. I was still able to login to the server's interface directly through the KVM console with no issue. This led me to believe that my motherboard's cheap onboard Realtek network interface chipset had died, so I ordered a Broadcom PCIe network interface card (BCM5751) to replace it, which should arrive by the end of the week.
However, today I restarted my system again, just to see what happens, and I noticed that the read-out "device eth0 does not exist" was no longer present. I still am unable to access the GUI, but when I ping the server's IPv4 address now, instead of returning as "unreachable," the request instead times out each time.
I really am not sure what is happening now as this seems to exceed my scope of knowledge and Googling ability. I'm hoping that this is just simply a problem with the mobo's network port giving out, and the NIC I have arriving in a few days will solve the problem, but if anybody has a better answer, I would greatly appreciate it.
Thank you in advance.
unraid-diagnostics-20241028-2112.zip