Another device on the network is using your computers IP Address. If you continue to have problems, change the IP Address of this computer!?

Hello Linc ,

I live in a dorm for University and my macbook air (med 2013 ) is connected to it like other students in dorm ...and the macbook Air shows a message that another device is using my computer IP address . I don't have another device how to fix this and can people( in the dorm ) see my contents of computer ? such as pictures ,files and videos ?

my settings show

configure ipv4 : using DHCP

thank you so much i would appreciate your help .

sincerely ,

Ameer

Papanate, tried step 2 above and also solved the same problem for me. Thanks

THANKS A LOT ! FINALLY IM USING INTERNET WITH ETHERNET !

BUT I WONDER THAT WHY MY ETHERNET SPEED IS SLOWER THAN MY WIFI ?

IT WOULD BE VERY HELPFUL

THANK YOU

Had the same problem, bought ipscanner home and found that NO devices had the IP address in the message.

I have this error message problem. I've tried all the fixes mentioned above but it persists. My settings are:

Configure IPv4: Using DHCP

Configure IPv6: Automatically

Clicking "Renew DHCP Lease" hasn't helped.

Are you guys really sure you should share your ip address and other personally identifying details?

It's big risk, always avoid it.

Are the IP addresses listed in the this discussion are local/privite, not routable addresses. The same address are used by millions if users.

https://en.wikipedia.org/wiki/Private_network

What you do not what to post is your public IP address, that is the address assigned by your service provider

THANK YOU! I was just sure I was hacked. I tried to open a link to "EverNote" sent in a text message from an old colleague. My phone slowed down then froze (I have an iphone5). I tried to turn off the phone, but it wouldn't turn off. I went to my laptop to search for an answer and the window popped right up saying that another device was using my ip address. I ran over and pulled the plug on the router, then removed the batteries from both my iPhone and my MacBook.

I later took them to my office and booted up my MacBook. Everything seemed fine. I proceeded to change all my passwords (still changing some less important ones as I go along). I finally put the battery back in my phone, but took it off wi-fi while I was home. Meanwhile, my husband changed the user id and password on our wi-fi. Everything seems to be working fine.

We had 2 wi-fi addresses from the one router (don't know why), and a few days later, I realized that my computer was defaulting to the 2nd address, when I got the message again about another device on my ip address. I had my phone and computer forget the second one. It's been very stressful. I am so glad to know that it was probably from my recent iPhone update to OS7.