ReadyNas Pro6 Rx Dropped On Ethernet 1 (but not Ethernet 2)

Well, I'm at a bit of a loss... I'm still using Adaptive Load Balancing and I'm seeing that:

• With only Ethernet 1 connected, there's zero Rx Drops
• With only Ethernet 2 connected, there's zero Rx Drops
• With both connected, I start seeing drops again - but depending on ? it those drops can be showing up on one adapter or the other (but never both)

So, this has me thinking that it must be something up-stream - namely my router - that is at fault.

My NAS is configured (locally) for 10.0.0.2 and that IP is also reserved for the NAS within my router.

The router firmware I'm using (Shibby's Tomato) allows me to tie up to two MAC addresses to a single IP and choose whether they're "bound" or not:

However, it doesn't seem to matter if I specify only Eth1's MAC, only Eth2's MAC, both, or both bound: in every case I end up with one of the NICs getting a lot of Rx Drops.

So, from a lack of other options to try, I deleted the NAS line from the ARP table all together, shutdown the NAS, rebooted the router, attached both cables to the NAS, powered the NAS back up... and, I'm still seeing drops on Eth2.

...at this point, don't I think poking at the NAS as if it were a black box and trying different configurations is going to get the issue resolved.

Can anyone point me to where on the NAS there might be a log file that would give some indication of why these packets are being dropped? - presumably, there's some additional debugging to turn on to see the needed details?

Thanks again,

   - Nathan