Strange "Local Area connection" doesn't have a valid IP configuration


  1. Franky
    Posts : 472
    windows 7 32-bit
       New #1

    Strange "Local Area connection" doesn't have a valid IP configuration


    Hi all,

    My Windows 10 x64 is connected to the ADSL modem accessing the Internet and alongside another machine running Windows 7 x86 is also connected to another port of the modem (both via Ethernet cable)

    The windows 7 machine has a yellow warning sign on the Internet icon and when trying to fix it says: "Local Area connection" doesn't have a valid IP configuration.

    I don't know how to solve it. The Ethernet driver is installed and device manage shows no issues.

    How to solve this strange problem, please?
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  3. samuria
    Posts : 3,785
    win 8 32 bit
       New #2

    On both pcs opn a cmd prompt type


    Ipconfig /all


    Post results do you have a modem or a router if its not running NAT you can only have one pc connected. If you disconnect the 10 pc can 7 then get an ip ok
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  4. Franky
    Posts : 472
    windows 7 32-bit
    Thread Starter
       New #3

    This is on win 10 x64:


    C:\Users\ME>Ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : DESKTOP-NS2M86S
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Ethernet:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GbE Family Controller
    Physical Address. . . . . . . . . : 38-2C-4A-BC-0B-E5
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::f9a5:5647:a8e1:3edb%8(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.3(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, August 27, 2019 7:10:59 PM
    Lease Expires . . . . . . . . . . : Friday, August 30, 2019 7:10:59 PM
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DHCPv6 IAID . . . . . . . . . . . : 70790218
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-24-18-B2-D1-38-2C-4A-BC-0B-E5
    DNS Servers . . . . . . . . . . . : 192.168.1.1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter VMware Network Adapter VMnet1:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet1
    Physical Address. . . . . . . . . : 00-50-56-C0-00-01
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::90c8:dbf4:7dce:5c75%23(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.75.1(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, August 27, 2019 7:11:03 PM
    Lease Expires . . . . . . . . . . : Tuesday, August 27, 2019 7:40:59 PM
    Default Gateway . . . . . . . . . :
    DHCP Server . . . . . . . . . . . : 192.168.75.254
    DHCPv6 IAID . . . . . . . . . . . : 151015510
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-24-18-B2-D1-38-2C-4A-BC-0B-E5
    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
    fec0:0:0:ffff::2%1
    fec0:0:0:ffff::3%1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter VMware Network Adapter VMnet8:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8
    Physical Address. . . . . . . . . : 00-50-56-C0-00-08
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::e1af:ffe3:15f7:fa88%9(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.254.1(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Tuesday, August 27, 2019 7:11:03 PM
    Lease Expires . . . . . . . . . . : Tuesday, August 27, 2019 7:40:59 PM
    Default Gateway . . . . . . . . . :
    DHCP Server . . . . . . . . . . . : 192.168.254.254
    DHCPv6 IAID . . . . . . . . . . . : 251678806
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-24-18-B2-D1-38-2C-4A-BC-0B-E5
    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
    fec0:0:0:ffff::2%1
    fec0:0:0:ffff::3%1
    Primary WINS Server . . . . . . . : 192.168.254.2
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Ethernet 3:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Kerio Virtual Network Adapter
    Physical Address. . . . . . . . . : 44-45-53-54-4F-53
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes



    This is in Windows 7 x86:


    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\Users\ME>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Behzad-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Atheros L2 Fast Ethernet 10/100Base-T Con
    troller
    Physical Address. . . . . . . . . : EF-9F-E9-F7-F7-F7
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::69dc:30a9:95f8:b637%12(Preferred)
    Autoconfiguration IPv4 Address. . : 169.254.182.55(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.0.0
    Default Gateway . . . . . . . . . :
    DHCPv6 IAID . . . . . . . . . . . : 200253417
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-03-C3-30-BC-EF-9F-E9-F7-F7-F7

    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
    fec0:0:0:ffff::2%1
    fec0:0:0:ffff::3%1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter isatap.{CF874C2A-2E7B-419C-81D9-4B9B66209A72}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    C:\Users\ME>


    If you disconnect the 10 pc can 7 then get an ip ok
    I unplugged the Ethernet cable to Windows 10, just to test, but yet the Windows 7 machine didn't work!
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  6. samuria
    Posts : 3,785
    win 8 32 bit
       New #4

    Try settings 7 to IP 192.168.1.25 subnet 255.255.255.0 default gateway 192.168.1.1 DNS 1.1.1.1 & 1.0.0.1 if it doesn't work then I would suspect the router is set wrong to bridge mode
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