Cannot see computer on network

DJ_EvergreenDJ_Evergreen MB, Canada Member
edited December 2005 in Science & Tech
Ok i've been having an issue with one of my computers. I'm running 4 computers on a LAN. 3 computers have no trouble communicating at all. When I try accessing the 4th computer though, it won't always connect. If I logon to the computer under a name (currently has 5 users setup on it) it will work perfectly. The next day if I try to login I get nothing. Can't even ping it. However if I switch to a different user it will sometimes start working again.

At first it appeared to me that is was a desktop issue, well i created a new partition and reloaded windows on it. Only problem is I'm still having the same issue with it as before, with only one user setup. So no go...

I've messed with the services running, etc with no luck.

Seeing I've had the problem on both partitions, I assumed it would be computer/nic/switch related. Tried the computer in a different port on the switch. Made no difference. Have not yet had time to try another NIC, but when I have time i'll try that out.

Anyone have any ideas, besides the NIC, of what it may be, or experienced anything like this before?

Comments

  • airoh69airoh69
    edited December 2005
    The ip address that is given on each computer is it automatically given or you give each machine an IP/ If it is done auto, try using 10.100.1.1-10.100.1.4 as ip and 255.255.255.0 as a subnet mask
  • kryystkryyst Ontario, Canada
    edited December 2005
    You can't just go and assign those ip's out to the machines since (I'm making a guess here) they are gaining inet access to a router. The router has to be on the same ip scheme as the machines or you'll loose any internet connection.

    If they are just 4 computers on a lan though then you can statically assign them whatever network numbers you want. Just make sure they all have the same starting 3 bits and a different ending bit, of course they also must have the same subnet (255.255.255.0). Also make sure they are all running netbui.

    But back to the router thing. If they are all connected to a router then the router will act as the domain and you can have it assign IP's automatically through DHCP. Make sure that the DHCP settings on the router are set to hand out enough IP addresses. Also make sure that none of the PC's (not just the one having the issues) aren't using a static IP that is conflicting with each other or an IP in the DHCP range.

    So if the router is 192.168.0.1 and it's DHCP setting tell it to start handing out ip's at 192.168.0.100 and up then make sure no machine is statically set to have an ip of .100 and up.

    In either case, need a little more info on how your hardware is set up to really troubleshoot the problem. IE what OS's the computers are running are they just on a closed lan through a hub or are they all hooked up to a router etc...
  • airoh69airoh69
    edited December 2005
    My answer was based if they are connected on a hub. If they are connected on a router then the same as Kryyst said. Also note that beacuse the router has 5 ports it means that it supports 5 PC`s. Mine has 5 (U.S. Robotics broadband router) but only supports 4 PC`s. The 2 ports are to connect a pc with a crossover or a straight wire.
  • DJ_EvergreenDJ_Evergreen MB, Canada Member
    edited December 2005
    My network is a little hard to try to explain, so I drew a diagram.

    Also, there are no firewalls installed on any of the pc's. The windows firewall is disabled. The other firewall turned on is through the router.

    Click image to enlarge
    networksetup6sg.th.jpg
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