LAN based OBFS4 bridge is not reachable - Your server has not managed to confirm reachability for its ORPort(s)

Current configuration:

(trying to run OBFS4 bridge on LAN computer with Xbian - Debian based Linux)

result:

Your server has not managed to confirm reachability for its ORPort(s) at somepublicip:1xxxx. Relays do not publish descriptors until their ORPort and DirPort are reachable. Please check your firewalls, ports, address, /etc/hosts file, etc.

ping and nmap to somepublicip fails from multiple locations. I have forwarded port on router to my LAN computer static IP already. Router firewall is off, obfs server firewall is empty and ACCEPT policy.

Can someone help me, ideally PM me for more private sharing of the data?