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Wired Networks Thread, Strange Switch Issue in Technical; Hi Guys, Typically last thing on Friday our RM CC4 network decided it didn't want to go back to school ...
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    Strange Switch Issue

    Hi Guys,

    Typically last thing on Friday our RM CC4 network decided it didn't want to go back to school and stopped letting users connect and disconnected our ICT office from the network. Went in yesterday and fixed the issue with users not being able to login (Problem with some RM services) but our office is still disconnected from the network.

    The machines are still in AD and checked the switches the ports are connected to are ok, restarted etc but still no joy :S i can't login to our switches as the council have control on them so have to wait until Monday. I also tried the PCs in another room and they work fine so nothing with the actual PC's. The signal lights on the back of the computers are still flashing away so there is a connection but on the computers you can't access the internet, intranet and shared drives etc. They just show the limited or low connectivity icon in the task bar.

    Any one have any ideas what it could be? Thanks

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    FN-GM's Avatar
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    Are the machines getting an IP address?

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    Quote Originally Posted by FN-GM View Post
    Are the machines getting an IP address?
    No IP address. Has confused me as the machines aren't all not the same switch either.

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    DHCP ran out of IPs?

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    It could be the follow:

    1. Run out of IP addresses
    2. The Ports on the switch are in the wrong VLAN
    3. The IP helper on the VLAN has broke
    3. Switch Duff

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    Quote Originally Posted by FN-GM View Post
    It could be the follow:

    1. Run out of IP addresses
    2. The Ports on the switch are in the wrong VLAN
    3. The IP helper on the VLAN has broke
    3. Switch Duff
    Some more things to try, thanks Luckily we only have year 7's in tomorrow doing treasure hunts around the school so IT shouldn't be that heavily used. The switch should be fine as other machines on the switch are working ok.

    The machines just stopped connecting though when they were turned on so could it be that DHCP has run out of IP's? as they would already of had one assigned when they were working.

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    You'll soon find out about the DHCP side if you look in the event viewer and see it screaming about it it's a good winner.

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