MediaOne is now AT&T Broadband (http://www.broadband.att.com/m1index.html).
“Can I hook up more than one computer to my cable modem?
AT&T@Home offers multiple computer access to each of its subscribers. You can purchase up to four additional Internet Protocol (IP) addresses, for a total of five per modem in order to have all your computers online simultaneously.
Beyond the initial IP address provided with the service, each additional IP address costs $4.95 per month. Please note that adding an IP will not give you more e-mail accounts or more WebSpace. AT&T@Home does not support home networks that result from multiple IP addresses.”
I do not see where it says no. Larry