I'm not sure. I pretty much just followed the instructions in the guide :)
The source code is up on the site, so even if it is not built in - you might be able to compile an updated version.
You could try asking @crptos too. He seems to be more of an expert :)
TNX for your reply. Maybe I'll just try again in an environent where I control the firewall settings :)
My first install was in an intranet with many ports being blocked.
I wish you successful mining.
Thanks, you too! :)