Fibrus use a DHCP connection with no username/password to the property, they also provide you with a ISP side firewall which restricts incoming connections. The result is that you cannot host anything or connect to your home in any way from outside using DDNS or WAN IP (CCTV, web hosting etc). As you are not identified on the system with a username/password, those restrictions cannot be lifted without assigning you a static IP. A static IP is a chargeable addon, currently £6 per month. I cancelled as I was still within 14 days. I think that is important information which should have been made known before purchase. Didn't have the service long enough to attest its reliablility. The staff were very pleasant though. Would not offer static IP without charge.