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d_originaldappa
d_originaldappa asked in Computers & InternetComputer Networking · 1 decade ago

LAN Worries :-(?

Hi I posted this question a few months ago. I got some good answers but none of them solved my problem.

I got a break through when I changed the duplex settings from 100mbps to 10mbps so we were able to have a connection between the two PC's

But, I realy want it at 100. In the space of one year I have tried every thing firewall, various settings, testing of cables, workgroups you name it.

Now the machines bothe have new motherboards with new network cards 10/100/1000. The still only work at 10mbps but now, when it is set to anything other than 10mbps the icon in the taskbar shows connected for about three seconds and then unplugged for anothe three and that goes on forever.

You can look at my profile for further details from my other answers (it's too much to fit here) any new info would be appreciated.

And please, no simple answers like firewall and ip adresses and drivers. I dismantle and rebuild my PC for fun. So I obviously would have check those essential setings. Thanks

Update:

thanks where I am right now I can't give exact details but it's a Nexxt 8 port switch with 8 green LEDs that blink only when data is transmited.

Update 2:

And the ip adresses are set manually already. I tried 192.168.0.1 and 192.168.0.2 and that didn't work, it finally came to 192.168.0.3 and 192.168.0.9. Have no idea how it only works with that alone. Auto doesn't work either. and ipv6 isn't helping the situation.

Update 3:

Thanks for the extra details but note that the network works just as a regular network should,( pinging etc). The only problem is that anything other that 10mbps causes the network to not work at all no matter which network adapter was used (five different NICs were used), with the exception of 2 laptops used which worked at 100mbps but seemed to move slower than the 10mbps.

3 Answers

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  • JAMES R
    1 decade ago
    Favorite Answer

    Please post the make and model of your switch. Does your switch have different colored lights on the front to distinguish between 10mb and 100mb connections? what are they showing when the computers try to connect?

    ok, set the IP addresses manually , set the duplex to auto on BOTH machines and make sure that the subnet mask is set to 255.255.255.0 on BOTH computers. then REBOOT EVERYTHING. shut down the computers, shut off the switch, turn the switch back on then the computers.

    can you buy a new switch (just cheapie one would be fine) and try it with that?

    based on the new info you posted, try this- I assume you can ping both computers at this point? try to ping 192.168.0.1 now and see if you get a response. the switch or your internet router might already have been set to 192.168.0.1, which would cause problems....

  • Eleanor Roosevelt
    Lv 4
    1 decade ago

    The first person's suggestion may be correct. If you are using a router it has a queue in it that will buffer data as you send it from one machine to another. If they are both at 100 and one machine is sending faster than the other machine can handle the data is buffered in the router or the data stream is throttled in order to prevent data loss. If you are just using a crossover cable between the two machines without any router, then there is no queueing. The machines will be overwhelmed and disconnect.

  • Anonymous
    1 decade ago

    try using a router

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