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Wired Networks Thread, Sudden 'Unauthorised network' issues on Domain in Technical; Originally Posted by marsdenprimary Yeah that's my first port of call i think- going to order a new tranciever and ...
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    Quote Originally Posted by marsdenprimary View Post
    Yeah that's my first port of call i think- going to order a new tranciever and take it from there :/
    at one of the schools i used to support i swear i went through fibre convertors so quick i can remember one period where i seemed to replace them weekly from the stock of spares dreadful things

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    Quote Originally Posted by ass17 View Post
    Fibre converters are pants! Use proper fiber SX or LX modules.
    I agree, we have just removed all our converters and installed the proper modules. File transfer times have more than halved

    They are expensive compared with the cheap converters you can pick up, but well worth the money.

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    Well- ordered a new converter with no joy, the problem was still there. We asked our local networking company to come in and have a look to see if they could fix the problem. The tech guy came in, checked through all the same things I checked through like cables, connections, switching things off and on and it still didn't work. He left. Five minutes later- the computers suddenly began receiving IP addresses and connecting to the network no problem... A few days later- they stop working again and stop receiving IP addresses.

    I put a new switch in the cab where the PC's are terminating...still no joy.

    Anyone out there got any idea??!!

    The only other solution i can think of is instead of the fibre connection, using CAT5e to link the problem cab to our main hub like all the other cabs.

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    Cat 5e or 6, either will do as I don't see you have many options left. Have you updated you switch firmware at both ends?

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    marsdenprimary (14th May 2013)

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    Quote Originally Posted by ass17 View Post
    Cat 5e or 6, either will do as I don't see you have many options left. Have you updated you switch firmware at both ends?
    They're unmanaged switches so I don't have the ability to do that... looks like there is only one option left!

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