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Thread: dm500 interesting ethernet problem

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    Junior Member Zepic's Avatar
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    Default dm500 interesting ethernet problem

    Here's an interesting one:

    As soon as I reboot either my dm500 or my router the ethernet link between my dm500 and the router dissapears for 6 - 7 min.

    When I say dissapears I mean no network at all between these 2 devices, no green light on the rotuer, then after 6 or 7 min it just starts working again without problem.


    Running PLi Jade2 now, also happened on PLi Jade.
    Here's what I have tried:

    Rebooting the router and dreambox multiple times.
    Changing ports on the router.
    Disconnecting cable rebooting dm500 then conencting cable.
    Re-flashing the dm500.
    Updating firmware on the router.

    Has anyone seen something like this before?



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    You'd better change the capacitor C65 by a 220uF/25V and add a 4,7uF tantale capacitor to the C23 and C25. If it doesn't work just change the ASIX AX88796.
    Good luck!

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    Senior Member gw1's Avatar
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    Default

    Another thing to try is replacing the router. I've seen quite a few routers have problems maintaining 100mbit as they get older and fall back to 10mbit mode after a while, or become intermittent. In such cases forcing the PC into 10mbit negotiation restores communication, but the DM firmware may not manage that transparently. So it's worth trying a different router when you see dropout problems like that.

    The ASIX capacitor issue is fairly well known so that may be the fault. But I'd try a different power supply (plugpack) on the DM500 first in case it's power related, since it's a quick thing to try.

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    Junior Member Zepic's Avatar
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    Thanks for the advice, I think I'll try the plugpack first, not the greatest solderer here.

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