I've got a Mikrotik I'm trying to get setup to do failover. I've got a DSL line to it, and it's working, and I've got a Cable connection to it, and it's verified working also. I've tried using the netwatch command and setting the DSL cost to 2. When I do that, the failover works, but the internal network loses connectivity to the outside world. We suspect it's because of the internal network being NAT'ed and when the failover happens, it's switching the IP that all the internal network is NAT'ed to.