UPnP & NAT-PMP maybe not working

[Bob.Dig]

Because of another thread, I "tested" UPnP and it looks like not working.
Normally I don't use UPnP so it could be a problem of Tixati.

  *** 29.03.2020 ***
[14:15:59]  starting Tixati v2.72
[14:15:59]  loading settings
[14:15:59]  loading core objects
[14:15:59]  loading interface
[14:15:59]  DHT > started
[14:16:00]  startup complete
[14:16:00]  listening on tcp:0.0.0.0:14903
[14:16:00]  listening on udp:0.0.0.0:14903
[14:16:00]  listening on tcp:[::]:14903
[14:16:00]  listening on udp:[::]:14903
[14:16:03]  NAT-PMP mapping TCP port 14903 on gateway 192.168.1.1 > error: operation failed (code 3)
[14:16:04]  UPNP mapping TCP port 14903 on gateway 192.168.1.1 > command failed with error 501 ActionFailed
[14:16:04]  mapping TCP port 14903 on gateway 192.168.1.1 will be retried every 5 minutes
[14:16:04]  NAT-PMP mapping UDP port 14903 on gateway 192.168.1.1 > error: operation failed (code 3)
[14:16:04]  UPNP mapping UDP port 14903 on gateway 192.168.1.1 > command failed with error 501 ActionFailed
[14:16:04]  mapping UDP port 14903 on gateway 192.168.1.1 will be retried every 5 minutes

I saw this in the firewall-log, which might be related.

Mar 29 14:09:34 	WAN 	Block ULA networks from WAN block fc00::/7 (12000) 	192.168.1.1:5351		224.0.0.1:5350		UDP  

 	2.5.0-DEVELOPMENT (amd64)
built on Sat Mar 28 17:20:10 EDT 2020
FreeBSD 12.0-RELEASE-p10

The system is on the latest version.
Version information updated at Sun Mar 29 14:20:13 CEST 2020