Having issues.

[lerxst2112]

Do both routers have external IP addresses or is one router connected to the other router?

If the router you're connected to has an external address then opening the ports on it should work, but if the routers are connected in series so you're on the internal router you will need to do some more work.

On the router that has the external address set the internal router to be the DMZ host, then do the port forwarding on the internal router and you should be ok.

Having two routers generally doesn't make things any easier. If you ran out of ports to plug things into it would be better to get a switch and use that to give you more ports.