Mikrotik router setup?

Anyone here knows a simple way to access my NAS from the outside world through a Mikrotik router?

I thought I had everything set up with UPnP since my Plex server works but… Dunno.

The NAS usually can set up UPNP rules by itself. What kind of NAS is it? Are you using the correct ports?
Check the “IP → Firewall → NAT” section in your router, are there any dynamically added rules, created by the NAS via UPNP?

I wouldn’t advice to anyone to use upnp. It is easy and it works but it opens security holes into otherwise safe network.

Agreed. Find out what ports are needed and setup the NAT as necessary.

Allowing devices to open whatever they like wherever they like is asking for trouble.

I’m for static port forwarding too, but to do something bad with UPnP, you first need the device in your network that would do it. And such device doesn’t really require UPnP to do something bad. It can as well connect to some “cloud” and let someone into your network through it. So while not having UPnP limits the options a little and thus is slightly safer, it’s not magic solution.