Sounds like you have Comcast Business class. That is normal. Even though you have a static IP, the device will still hand out IPs with the built in DHCP server. You probably got an IP of 10.1.10.10 since 10.1.10.1 is the IP of the cable modem. You can log into the modem and disable DHCP. You can also disable the firewall on the cable modem to have a true static IP subnet. To be honest, many of the Cisco Small Business products are pretty lousy IMHO. Consider getting a better device.