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Windows 7: Ip already assigned to different device.

16 Nov 2012   #1

Windows 7 Home Premium 64bit
Ip already assigned to different device.

So i got the error saying that my computer was using the same IP address as another device in the house... Well i went into command prompt and did ipconfig /release ipconfig /renew and restarted my computer and that didn't work. Now when i use Ethernet my internet doesn't work but i connect to my WiFi and the internet cuts out every so often. Excuse my language but What the hell is going on? I'm honestly not sure what I'm doing here anymore... Help me please i'm really confused and have almost no time to fix this...

My System SpecsSystem Spec

17 Nov 2012   #2
Microsoft MVP

Win7 & Win8 64bit

Welcome to Seven Forums,

By any chance do you have any devices that you have assigned Static IP(s)? This need to be excluded or outside of your DHCP range in your router configuration to avoid conflicting IPs in your network. Modern routers will show the IP/Mac Addresses of each device in your network.

For your wireless issue can you please install and run Xirrus Wi-Fi Inspector?
To run Xirrus Wi-Fi Inspector, double click the Xirrus icon on your Desktop, you may use the Windows 7 snipping tool to crop or Paint by tapping the Print screen key on your keyboard, open up Paint (Click on Start>All Programs>Accessories>Paint) then choose Edit from the Menu and select Paste, then save it and please attach the file on your next post.
My System SpecsSystem Spec
17 Nov 2012   #3

Windows 7 Home Premium 64bit

Ok i uploaded a picture of the xirrus program and ipconfig /all in cmd.

Attached Thumbnails
Ip already assigned to different device.-capture1.png   Ip already assigned to different device.-capture.png  
My System SpecsSystem Spec

17 Nov 2012   #4

Windows 7 Home Premium 64bit

I also thought i'd add this because this confused me so much.

Attached Images
My System SpecsSystem Spec
17 Nov 2012   #5

7 x64

It seems as something on your LAN is getting or has been assigned a Static IP that your computers wired NIC is trying to use.

That unidentified network may be a Guest network on your router. If you haven't turned off that feature it is best to do so. Or if you feel you need or want it set it to a different SSID name and make sure you assign a Password to it.

You should try turning everything off, router, all computers, phones and pads. Then power up the router and one device at a time. First the computer that is having the conflict.

Could also be someone hacked into your wireless network and has changed some settings or assigned themselves a static IP that your computer normally gets.

Might be best to change the wireless password.
My System SpecsSystem Spec
17 Nov 2012   #6

Windows 7 Ultimate x64

Your ipconfig /all shows you have DHCP enabled on your system on wireless and ethernet connection no conflict there.

Another computer/s in the household may have a fixed(static) ip address please check other computers or devices in the household for any ip addresses that match those above.

Also you can change those connections from a public network to a home network by right clicking on public network and selecting Home network.

Edit: Also try changing the channel on your router to channel to avoid interference.
My System SpecsSystem Spec
18 Nov 2012   #7

Windows 7 Home Premium 64bit

I'm resetting my router. Perhaps this will stop it from reassigning the same ip to different devices. Will let you know if this works thanks for all the help.
My System SpecsSystem Spec
19 Nov 2012   #8

Windows 7 Home Premium 64bit

For everyone who may have had this problem. My friend called the router company and had to type in the default gateway into the browser and reboot it manually then had to do some other things he couldn't explain properly. But for all who have this problem, just call the router company and they will help out.
My System SpecsSystem Spec
20 Nov 2012   #9

Windows 7 Ultimate x64

Glad your issue is now resolved thanks for posting back.
My System SpecsSystem Spec

 Ip already assigned to different device.

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