How do I fix a duplicate IP address?
Use DHCP on your router and iPad.
Make sure that no 2 or more devices have the same IP address in your network.
If you need more help, it would be good to describe your problem in more detail.
there are times when wife comes back with her sleeping macbook and when I fire up my imac I get the error because the dhcp give my the same ip as it had given her before she left then one of us just turn of wifi and back again then dhcp sorts it out
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