Connections dropping every 60 seconds

Hi,

I am running both a Tor relay and an I2P router here. Mainly bought the Omnia because my old home router had some stupid limitations in handling multiple connections.

It went fine first, but since (I guess) the upgrade to TOS 6.0 I am stuck at around 10k connections. Every 60 seconds around 500 connections are destroyed, established, destroyed.

Days before TOS 6.0 upgrade, I saw this going up up to 17k.

Any idea what could be the issue here? What kind of mechanic is dropping these connections? Into what limit am I running?

SYN Flood protection is disabled, as well as dropping of invalid packets.