how can one computer be taken off a local network while the other 3 stay connected?
401935
Just unplug the Network Cable.
1134230
Yes, absolutely you can do what you want.   If the computers are near each other, and near the cable modem, then the easiest way is with short Ethernet cables and a router.   The router connects to all 3:  to the modem, it looks like a computer, and to the computers it looks like an internet connection.\n\nYou can also do this with a wireless router.  It works the same way except that radio communication is used instead of cables between the router and the computers (The router is still connected to the cable modem with a cable).  However, you need to get a wireless card for each of the computers, the router you'd use is slightly more expensive, it's not quite as fast, and it raises potential security issues.   The security problems can be solve, but it's an additional thing to worry about.\n\nSo, assuming the distances are short, you should buy something like a 4-port router (made by Linksys, Netgear, and others).  Make sure it has a firewall built in (they pretty much all do).   Do NOT buy an Ethernet "hub" or "switch": make sure it's a router.\n\nIt'll probably come with a cable to attach it to your cable modem.  You probably already have one such cable, so may need to buy one more.   (You'll need 3 all together for this set-up.)\n\nThe fact that one machine is a PC and the other is a Mac shouldn't matter at all.
531077
disconnect the internet.
449228
Umm... not directly no, but nothing stops you from connecting it to a pc that's connected to the wireless router. What exactly is it you're trying to accomplish? There may be another way.\n\nEdit: Hmm, well I know that can be done if both computers are on the same network, and the drive is shared. Once they're in a network as long as the computer that the drive is attached to is running, the other person could go to start menu -> run and type &#92;&#92;whatevcerthecomputernameis and it would pop up, they could browse it just like it was one of thier drives. However networking really isn't my thing, so I can't explain it any better than that, unfortunately.
927711
yes, or set up a router to automatically assign ip addresses as the computers connect. good luck.
1096291
just remove the network cable
126608
the cheapest way is to connect two computers directly together using a cable.  To do this you will needa Network Interface card (NIC) in both computers (most new computer come with them as standard but if not they are cheap).\n\nbuy a CAT5e (crossover) patch cable and plug each end into the computers NIC cards. If your using XP you can run the "set up a home or small office network". This wizard will do all the work for you.\n\nenable internet connection sharing on the computer that conects to the internet and bobs your mothers brother :-)
311250
easiest way is ethernet- one NIC card for each computer, and a hub to link 'em
1107421
drop your windows firewall. but make sure you have another one running.
19800
Cheapest way would be to turn off dhcp then manually setup the IP configs of each machine only putting in DNS on the 3 you want to hit the net. Surely you have a brother in law or local geek that can do that for ya.\n\nNext cheapest depending on physical location you could also add cards and new cable just to the machines you want on the internet.  You'd use the local lan for local ip traffic and the Internet lan for internet traffic. You may already have the ability to do this via wireless and not have to add cables depending on the router at the internet connection.\n\nIf you have a programmable router at the internet connection there may be a way to give permissions to just 3 machines.  If you don't you could put one in between the internet connection and your switch.   Each switch is different so I can't give you specific instructions.  You'll need help from your geek friend to pick one out and set it up.\n\nThe Cyber cafe's idea will work but might be expensive in cost / time as it's overkill for what you need. I've left a link in my sources to the cybercafes reviewed by tucows and a link to a interesting piece of software for 20 bucks that does exactly what you asked for.  I can't comment on whether it works well or not but it's shareware so you can try before you buy.  Note: Software solutions are sub-optimal to the hardware type solutions I mentioned.
356189
Physical disconnet it from the intranet.
46058
This is your networking service for windows. It is required for internet usage eg: DHCP, TCP protocols, along with printer usage etc. You can't turn this off.\n\nhope that helps.
690377
Yes you can but you don't share the hardware- you share the software. There is a program called VNC which allows you to connect to another PC on the network and take control of it, if it as though you were in front of it, very good piece of software.\nGo here for details- you can download a free limited copy:\nhttp://www.realvnc.com/
797400
create a small network . You need a router, you can go wireless or not, but the router is a necessity. It will enable you to plug another pc in, or to use the wireless connection for one or several other pc.\nYour modem will connect into your router, which will dispatch the information to all the computers.\nYou can download network magic (google it), it is free, and helps you setting and handling your network.\nIf you fear another unwanted pc would access your account, network magic will tell you about any intruders, and how to secure your network.
1148971
Going by your network diagram, i think your best bet is to remove router 1 from the network and connect router 2 directly to the modem. That removes the ambiguity of having two router cascaded in a home network like yours. Doing this, all computers can be on the same network and sharing files becomes easy,\n\nAnother option you have is to yuse a wireless bridge instead of router 2. This again ensures all computers are on the same network.\n\nA third but more intensive option you might sonsider is setting up a vpn within your network which enables you to do such files transfers. Some programs are also available which can help with this. e.g Microsoft Netmeeting\n\nIf you donot want to change your network structure in anyway, I'll advise you go for this last option.
620365
If you have ethernet jacks on each computer then you can get a crossover cable which will allow you to create a 2 computer LAN.  You can then setup file sharing on the old computer and just drag and drop your files onto the new computer :)
510394
use a router.  Plug the cable modem into the back of the router where it says "Internet" and each individual computer where it has ports for the CPUs.