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OT Internet Connection Sharing

Discussion in 'Electronic Design' started by [email protected], Oct 23, 2013.

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  1. Guest

    Every time I try to do this is screws up the modem and I have to reboot it.I know it can be done because I've seen it but I am apparently doing something wrong. They had it at work, two NICs in the master PC in the office then that fed a router and thus all the other PCs in the shop.

    The basement PC acts as a server, has XP Pro on it and my printer. It's a biggun so it lives in the basement. There used to be almost a TB in it untilone drive went bad, but I'll deal with that later. It still has most of mybest media and porn on it.

    That one is on wire, as is a newer PC with XP Pro 2nd floor. Also one laptop running Vista on wireless and one running Win 8. Intemrittently there is a MAC on wire and another Vista on wireless. Once in a while there is even another one using Win 7 on the wireless.

    Everything seems to work, but now I have this other Win 7 PC that I am trying to get online without disconnecting anything. It is not equipped with a wireless card. The laptop on wireless was first. I tried to just let it connect on air, and then share the internet connection via wire with the "new"Win 7 PC. When I did that the whole thing went down.

    Next, I take it downstairs, put a second NIC in the basement PC, turned on ICC and poof, same thing. Had to reboot the modem again.

    What the hell am I doing wrong ? The first NIC is onboard, an Nvidea nForce.. The one I added was a Realtek with a RTL8139B chip on it. Device manager said everything was fine.

    This last time I had to do a system restore on it just to get it to connectagain even after rebooting the modem.

    The modem has the router built in and the wireless, it seems to be a Pace 4111n, supplied by ATT. This has, however, happened on others.

    What am I doing wrong or not doing here ? I want to avoid buying a wirelesscard (or using another channel) or using the last RJ45 on the modem. I might eventually use that for the printer.

    Whatever way it works, I would like to have an extra wire hanging around for any PC I might want to hook up in the basement.

    I don't believe it's because there is a newer OS connecting through an older OS because it didn't bother the system at work. I connectd a Vista laptopto the router that was connected to the XP "main" PC in the office and it worked fine. I did not set that up, the computer "guru" did. He is not available anymore.
     
  2. Guest

    Wrong OS.
     
  3. John Smith

    John Smith Guest

    No-one uses a Windows PC for Internet Connection Sharing any more.

    Connect a suitable wireless router directly to the modem and configure the
    router correctly.

    The rest of the network can use wires, switches and additional wireless
    access points as necessary.

    Old Guy
     
  4. Nico Coesel

    Nico Coesel Guest

    Any Micrsoft OS sucks for sharing internet. Buy a 3COM Office Connect
    router.
     
  5. Guest

    No money. there will be no router or anything of the sort.

    Over in SER someone mentioned I might need a crossover cable. Those can be made. The newer PC certainly has auto crossover, but I'm not sure about the old Realtek NIC.

    I seem to be getting alot of this "not the right way to do it". Really, I don't care if it causes global warming or whatever. I've seen it done, I've seen it work for years at two places I worked.

    Honestly, I could probably talk myself out of the money to buy (YET ANOTHER !) router, but it has become more of a challenge now. It's like working on that old 7603, it has become more than just the value of the unit or whatever, now it's personal.
     
  6. Nico Coesel

    Nico Coesel Guest

    You are talking about a modem. I guess the PC is doing all the hard
    work? This means you have a WIndows machine connected to internet
    directly.. You shouldn't do that. Its probably already infected and
    used in several botnets. Secondly, if your PC is doing all the work
    because the modem isn't then there are probably some modem drivers
    installed. Microsoft being seriously crappy at implementing a proper
    network stack this probably causes all kinds of compatibility issues.
    What you have seen at your work is probably a router with an internal
    modem. Maybe that combination has a chance of working when you use a
    PC to share the connection but that is just overkill. A 3Com office
    connect solves all your problems.
     
  7. Martin Brown

    Martin Brown Guest

    We used to do it that way for a charity on scrapped gear running Win98SE
    more than a decade ago when ADSL was fairly new and combined modem
    routers were expensive. They were on dialup before I arrived.

    I wouldn't contemplate doing this today no matter how impecunious. The
    XP machine is a sitting duck attached directly to the internet today
    even with a software firewall installed and it will get spectacularly
    worse when MS XP support expires April 8th 2014. I think they should
    have made the support expiry date April 1st - seems much more fitting.
     
  8. Jasen Betts

    Jasen Betts Guest

    Router? I would have expected a switch.
    It should work, you need to configure it as a bridge, not as router.
    RTL8139 is dirt common, unlikely to be problematic.
    "bridge", if you want the same LAN environment to appear on both sides
    of a dual interface device you configure it as a bridge.
    If you want to do it the easy way buy a 5 port ethernet switch

    small printers with RJ45 are getting hard to find, ours is wireless.
     
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