Description:
After installing kernel version 6.4.1 and 6.4.2 the drivers for the Realtek GigE RTL8111/8168/8411 would cease to function approximately 1-2 hours after boot. I've experienced it as early as half an hour after boot. Downgrading back down to 6.3.9 and below, the issue never comes up again. No issues with the latest kernel for Ethernet controllers from Intel, both I225-V and I219-LM.

First noticed when network went down, and any attempts to fix did not work. Plugging in a USB NIC and taking the link down would cause traffic to flow normally, but RTNETLINK would always fail to find the device to attempt to bring the link back up. After reboot, once net went down, trying to run "ip a" to see if DHCP address was still available would cause a hang for around 5 minutes. Following this, the DHCP route and address would be gone from the interface, and taking it down/up would result in behavior previously mentioned. Following this, I had installed the 6.4.2 kernel to repeat issues.

Unfortunately, I do not have logs since I was more focused on bringing the machine back online to continue work. I can attempt to replicate and get logs if really necessary, but this is a machine in use almost every day. Forcing it into downtime isn't ideal.