Guys, I have totally same failing problem under "Data" & "Broadcast" port status.
Strange enough that these ports show up in UPNP list as enabled and also I have virtual servers/port forwarding set up for them to work correctly, alas they don't:
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Other than that xbox working fine via Ethernet when downloading covers, TUs etc.
Any help would be highly appreciated! Honestly speaking I checked out FSD only because of LiNK, no offence but NXE + DL + XeXmenu is more than enough.
P.S. I tried turning off "Enable UPNP for port mapping" to look how it will go but no luck whether it is on or off. Tried to use different ports as well, same thing.