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"Ethernet" doesn't have a valid IP configuration

Last response: in Networking
March 16, 2013 2:08:09 AM


I'm using an ethernet cord to connect to my internet and it has been working well until Thursday morning when I turned on my laptop (Windows 8) to see a yellow triangle sign in the bottom right hand corner, in front of the ethernet connected symbol. Since then I haven't been able been able to access the internet from my computer. When I hover over it, it says that it is an "Unidentified network" and there is "No internet access". I've run the Windows 8 troubleshooting and it says that the problem found was ""Ethernet" doesn't have a valid IP configuration", but I'm unsure how to fix it.

I'm thinking that the problem is to do with my computer rather than my network, because I've tried another laptop (Windows 7) through the same ethernet cable and connection and the internet works fine on the other laptop. I've tried so many fixes that I've found online, with none of them actually working. Yesterday I even tried a full system reset, where I reinstalled Windows 8, repartitioned and wiped everything off the hard drive, but it still appears have the exact same problem.

Today I also purchased and tried a new ethernet cable which didn't work, so I then purchased a USB to Ethernet adapter, to make sure that it wasn't my ethernet port on my laptop that was faulty. That didn't work either, and the same problem still remains.

I feel like I've tried everything, so can someone please help me?

Thanks in advance,
March 16, 2013 2:54:31 AM

if ur windows 7 laptop was working fine , then it's definitely ur system .
what settings have u set under TCP/IP ver 4 , in ur connection properties
Open network and Sharing center , on the left panel , choose change adapter seetings , right click ur LAN Connection , Properties , double click IP VER 4 . are these setting on automatic or manual ?

March 16, 2013 3:01:21 AM

Hi SkyWalker1726, both IP address and DNS server address are set on automatic.
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March 16, 2013 3:28:42 PM

ur DHCP must be working fine since ur laptop can connect to the internet , so plz connect ur laptop once more ( windows 7 ) , fowllow the same steps , But DOUBLE Click the Adapter connection , u should see DETAILS , click that , and ull see what ip has the connection opted , u should see

1-IpV4 adress ( ex )
2-Ipv4 Subnet ( ex )
3-Default Gateway ( ex )

write these down , now in ur windows 8 connection settings , set the Ipv4 properties settings to manual configuration , then set the values that u written down ( as for dns , set the same as default gateway )

OK and apply , ur connection should now work .
March 16, 2013 6:37:56 PM

Thanks SkyWalker1726, I'll be sure to try that when I have access to the Windows 7 laptop later this evening.