This is the interesting part of your console log:
Initializing UPnP...
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List of UPNP devices found on the network :
desc: http://192.168.0.101:49152/gateway.xml
st: urn:schemas-upnp-org:device:InternetGatewayDevice:1
desc: http://192.168.0.101:49152/gateway.xml
st: urn:schemas-upnp-org:device:InternetGatewayDevice:1
Found a (not connected?) IGD : http://192.168.0.101:49152/upnp/control/WANIPConnection
Trying to continue anyway
Local LAN ip address : 192.168.0.103
ExternalIPAddress = 0.0.0.0
AddPortMapping(28000, 28000, 192.168.0.103) failed with code 401 (Invalid Action)
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Ensure that port 28000 is correctly forwarded to 192.168.0.103. Once your settings are saved, restart your router by unplugging it, waiting 10 seconds, and then plugging it back in. After your network comes back online, start the dedicated server again.