Hi all,

I've been seeing a lots of "Drops" on the network interface and have no clue why. Below is the number of Drops recorded over 20 days (Unraid running time). The only problem I've experienced is that the torrent client in a VM often has error reading from the disk (Unassigned Device) containing the torrent file. Both eth0 and eth1 connect directly to an Ubiquity router. The sheer number of drops is a little troubling... Any leads to resolves this?

Hardware wise, I'm running the N355 board which has 3 ethernet ports. eth0 and eth1 settings below. I can attach diagnostics if needed.

drops I've found are almost always the cable...

eth0 and eth1 are connected to the same Ubiquiti router using 2 different cables. Looking at the drop counts, I doubt it's the cable. But where should I begin to investigate further? Like what can I check on the Unraid server?

you cannot connect 2 NICs to the same switch (without creating a bond) and expect them to work!

You have created a loop which will drive cards and switch crazy. Usually one of them gives up after a few seconds...

Edited January 26Jan 26 by MAM59

On 1/26/2026 at 10:29 PM, MAM59 said:

you cannot connect 2 NICs to the same switch (without creating a bond) and expect them to work!

You have created a loop which will drive cards and switch crazy. Usually one of them gives up after a few seconds...

2 NICs were working before, eth1 was originally passed through to a Vm. Anyways, as suggested, I have unplugged eth1 (so there's only 1 active NIC on the Unraid server - eth0), and the drop count on eth0 is still ticking up.

3 hours ago, DrJake said:

was originally passed through to a Vm

so that was not not a loop. But now you have one, leave it unconnected!

3 hours ago, DrJake said:

and the drop count on eth0 is still ticking up

these drops are most likely transmissions errors due to bad cabling then. Check the cables, look for dog/rat/cat bites.

(mice could also be the culprit)

Edited January 28Jan 28 by MAM59