Could anyone care to explain use cases for cloud routers? I get that there are cases where it is needed but I cannot think of any other than VPN.

I'm having the same issue, It's almost embarrassing to admit. Ever since I upgraded my mikrotiks to v6.20 simple port forwarding doesn't work. I tried sniffing, inbound and outbound. traffic comes and goes, I can not capture packets on the WAN so I cant tell you if NAT is actually translating the so...