Compaq Netelligent 1017A/B

Does your ISP give you several IPs by default?
Does your hub have a built-in DHCP service?

If the answer to both of these is no then you won't be able to connect more than one computer at the same time. What you need to do is replace the hub with a combination Firewall/router/switch. In addition to providing the physical Ethernet connections and protection from the Internet this device will have NAT and DHCP services that will create a small home network for you.

Let us know the answers to the first two questions so we know how to proceed.

Let us know the answers to the first two questions so we know how to proceede.