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Wired Networks Thread, Strange intermittent problem in Technical; OK folks I'm in need of help as my head is battered from trying to figure this out. I've just ...
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    Angry Strange intermittent problem

    OK folks I'm in need of help as my head is battered from trying to figure this out.

    I've just moved to a new school and we are in the process of moving from CC3 to CC4 (CC4 was commissioned from scratch on it own mini network) including changing IP ranges and introducing a Smoothwall UTM 1000 box thingy......

    CC3 servers - Turned off all DHCP/DNS services to avoid any conflicts since the CC4 servers have now gone live on the network

    Everything seemed to be running smoothly until this week where we seem to have an intermittend problem access the internet and pinging the internal address on the Smoothwall box.
    Can ping the external IP address and also the 192 address on the smoothwall box.

    Now this is where it gets confusing........... it seems to affect random machines at random times and doesnt affect the entire network in one go.
    Example,
    2 computers next to each other...... computer A will have an issue and computer B will be perfectly fine.
    Other times Both computers will have the same issue and other times computer A will be fine and computer B will have the issue.

    Smoothwall seem to think it may be a network issue, myself I havent got a clue since it happends randomly.


    Has anyone any ideas or suggestions I can look at next.

    Many thanks
    Mark

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    cpjitservices's Avatar
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    When the problem arises see if you can login to your switch where the PC is connected and see if you can ping the machine in question.

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    When the problems hits, I am able to ping any device on the network except the internal address on the smoothwall box.

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    twin--turbo's Avatar
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    can any machine ping any other device? is it just the smoothwall?

    If so, it sounds like the smoothie has an IP conflict of it's own.

    Rob

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