HT201184 What does this mean? How do I fix it?  "Another device on the Network is using your computer IP address (then it gives current IP address)"

"Another device on the Network is using your computer IP address" is plaguing me.  What can I do to correct this?  It seems to come on after it has been inactive for some time.

Hi Delores,
What Encrytion does your Router/Modem use?
This might mean your Mac is set to a Static/Manual IP instead of using DHCP to request an IP, or another device is starting up with a Static IP & kicking your Mac off the Router.
If this is Wifi/Airport with little or no encryption,it could be somebody outside causing it.
How many things are connecting there?

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