So here's the deal. I want to setup an older desktop as a sort of basic home server, to store the bulk of my files and make them accessible by other computers in the network. As I have no choice but to use Comcast cable in my building, I have a device I'm leasing through them for my Internet (router/cable modem in one, I believe the model is an Arris TG1682G). All my other computers and devices are connected wirelessly (good thing it has dual band so one frequency doesn't get too crowded), but... I want the server to be connected directly with an Ethernet cable (cat 6), plus I ran out of wireless adapters and am too lazy to get another. I did connect it to a port in the back of the device, and it successfully connects to the Internet, however...
The wired connection creates a separate network, called Network 2, obviously different from the WiFi network my other computers are on, even though they go through the same cable modem device. How do I enable the two networks to communicate with each other so I can share the contents of my drives on the server one? This is a pretty noob question but whatever. And what specific steps do I take in sharing folders/files and such? As far as I can tell, it's just a matter of right clicking, going into Properties, and enabling sharing? I plan on connecting my printer to the "server" as well, and I guess maybe considering installing some kind of Linux variety eventually. Anyway, on Windows, is the sharing all user-based, with usernames and passwords?
Furthermore, do I need a more heavy-duty NIC? The one on that computer seems to be a Realtek PCIe GBE Family Controller.
I may have some more questions that come up as I get these things figured out.
Thanks for the help.