Networked

I’m a noob. I don’t see anyone else mention they are having difficulty port-scanning this box… I’ve run at least half a dozen different nmap scans, except a UDP scan of ALL ports(waiting on one). All scans have reported that all ports are filtered, this has remained across box resets… I’m always up for a challenge, but want to make sure this is meant to be happening?

EDIT: Oddly enough, I now AM able to scan the box, 24hrs later… and no ports are coming back as filtered… I couldn’t see any ports before, nor visit the site, but now it’s working. Very odd.