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  1. redbowtie

    3com 4500 POE drops

    These switches are plugged into a 2200XL that has 58% load on it. Plenty of power available. Never blown any ports. The non POE devices continue to operate so the ethernet function on the switches is not affected.
  2. redbowtie

    3com 4500 POE drops

    I have 3com 4500 POE switches running Shoretel VoIP phones. Occasionally when a thunder storm goes through the area the switches will drop or stop supplying POE power to all of the ports. To get the POE power to come back on I disable POE on all ports the enable POE on all ports. The switches...

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