This is marked as having a solution, but it is not solved, there is a workaround to downgrade your firmware. This is an issue for me at the moment. I would like for something to be done to actually solve it.

I have a very simple setup, 2 vLANS, with inter-vlan routing enabled and working perfectly (machines on either vlan can ping one another). I need to use a second external IP to send traffic to vLAN 2. The moment I enable the One to One NAT checkbox I...