Windows 10: Problem: "Ethernet doesn't have a valid IP configuration" Lenovo

Dear Tenforums users,

I have recently encountered some problems wth my relatively new Lenovo IdeaPad laptop;
whenever I try to connect to the internet using ethernet it tells me that "Ethernet doesn't have a valid IP configuration"

I have the Realtek PCIe GBE family controller as my ethernet device.

I have browsed the internet about it and tried to update the ethernet driver via device manager. However, even after doing that, nothing has changed. I am currently using Wifi, but at my work location the connection via WLAN is very... bad.

I hardly have any knowledge about drivers and BIOS and stuff. I hope that anyone amongst you is able and willing to help me out in this matter!

I sincerely thank you all for your time!

Yours,



:)

 

Windows 10 Update of 09/22/2016 Disconnected my Network Drives

Diagnosis reports: "Ethernet doesn't have a valid IP configuration." There's no support offered for how to get a "valid IP configuration".

 

Ethernet doesn't have a valid IP configuration

Recently I have found myself unable to connect to the internet with an ethernet cable. The connection is an "Unidentified network" and the troubleshooter tells me "'Ethernet' doesn't have a valid IP configuration." I encountered this very problem a few
months ago with Windows 7, and upgrading to Windows 10 seemed to work after a couple of days.

 

open a cmd prompt then type ipconfig /all post results

 

Dear Samuria,

As requested the ipconfig/all results:

Windows IP Configuration Host Name . . . . . . . . . . . . : Kevin-Lenovo Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : HomeEthernet adapter Ethernet: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : 54-EE-75-7D-B1-C2 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : YesWireless LAN adapter Local Area Connection* 2: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter Physical Address. . . . . . . . . : E0-94-67-40-30-EA DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : YesWireless LAN adapter Wi-Fi: Connection-specific DNS Suffix . : Home Description . . . . . . . . . . . : Intel(R) Dual Band Wireless-AC 3165 Physical Address. . . . . . . . . : E0-94-67-40-30-E9 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::f8fc:7f2e:3127:b684%5(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.20(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : dinsdag 8 november 2016 23:09:47 Lease Expires . . . . . . . . . . : woensdag 9 november 2016 23:36:18 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 65049703 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1D-E0-1A-61-54-EE-75-7D-B1-C2 DNS Servers . . . . . . . . . . . : 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : EnabledEthernet adapter Bluetooth Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Bluetooth PAN HelpText Physical Address. . . . . . . . . : E0-94-67-40-30-ED DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : YesTunnel adapter Teredo Tunneling Pseudo-Interface: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6abd:386b:30f2:3f57:feeb(Preferred) Link-local IPv6 Address . . . . . : fe80::386b:30f2:3f57:feeb%14(Preferred) Default Gateway . . . . . . . . . : :: DHCPv6 IAID . . . . . . . . . . . : 402653184 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1D-E0-1A-61-54-EE-75-7D-B1-C2 NetBIOS over Tcpip. . . . . . . . : DisabledTunnel adapter isatap.Home: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Home Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes

 

Been having the same issue after applying an update today. Been going crazy for two hours now trying to resolve. In for a fix!

 

When you did that was there a network cable plugged in as it show its disconnected so if it was plugged in does it show a light on the router to show the cable is ok?

 

I rebooted my PC after first deinstalling the Ethernet driver (for the 2nd time) and doing a clean install of the driver downloaded from Lenovo site. I also rebooted the router at that time. WHen I plugged in the cable it was FINALLY recognized and I managed to get a connection!

I hope it will stay working now! Will post if I encounter new issues! Thanks for your comments and help!

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