[djchen]

What distro and kernel version are you running on there? The Realtek 2.5G NICs should work natively with a recent kernel.

[bravetraveler]

Funny you ask! I just edited this in, realizing it was relevant.

It's quite odd, this is with Fedora -- the current/latest release for about the past year (34 through 36).

It's seen quite a healthy number of 5.x kernels, but every time I try to go without I reluctantly have to build it again

It'll work fine, for a time, but when I really put stress on that link it'll drop

Edit: This is trained at multi-gig too -- going to a 10GbE Mikrotik switch.

I haven't tried testing reliability at 1G -- it's probably better, but I'd like the speed... I still have yet to try a 6.y kernel on it

[zerd]

No guarantee that it'll fix it but for me it helped to disable ASPM, details in https://forum.odroid.com/viewtopic.php?t=39678

[bravetraveler]

Certainly worth a try, thank you!

Seeing they have a kernel PPA makes me suspect too that there's some patchwork going on, where I'm using vanilla Fedora kernels

[heavyset_go]

You can use dkms to automatically compile your out of kernel driver for you whenever you install a new kernel.

[bravetraveler]

Indeed, I'm aware - that's what I typically use

When I say build it, I really mean allow dkms to function