Mikrotik. Port forwarding?

Question

openvpn

There is a DVR with internal 192.168.1.50. port forwarding done
ip
firewall
nat
chain=dstnat
protocol=tcp
dst-port=8000
in-interface=ether1
to-addresses=\192.168.1.50
action=netmap
Through a standard application to the DVR (both from a PC and from a phone) via external ip to port 8000 connection goes, everything works
through the web interface no.
If you forward port 80 to the video recorder, the web interface works, there is no application.

Answer 1

Write the second probros.