[Aldowell]

Hi,
I've been getting this error "Ethernet doesn’t have a valid IP configuration" from widows troubleshooter for the past 2 days. My router is WAP set up and connected to a modem + router. I tried to connect exactly the same cable that I use for my computer to a laptop and it works fine so the problem is with my computer and not with my router/modem.
So I need your help how do I fix this issue?

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What version of Windows?

 

Open an Elevated Command Prompt:
Win 7: Start, All Programs, Accessories then right click on Command Prompt and Run as Administrator
Win 8: http://www.eightforu...indows-8-a.html
win 10: http://www.howtogeek...-in-windows-10/

Type:

ipconfig  /all

hit Enter.

You should get something like:

 

Windows IP Configuration

   Host Name . . . . . . . . . . . . : TVguy
   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. . . . . . . . . : 44-8A-5B-C0-D8-C7
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Wednesday, January 15, 2020 5:45:40 AM
   Lease Expires . . . . . . . . . . : Thursday, January 23, 2020 7:45:33 PM
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCP Server . . . . . . . . . . . : 192.168.1.1
   DNS Servers . . . . . . . . . . . : 192.168.1.1
   NetBIOS over Tcpip. . . . . . . . : Disabled

 

 

You may have some IPv6 stuff in addition.  The two items in bold should both say YES>  Do they?

 

What IPv4 address do you have?

 

Now type:

sc  query  dhcp

 

hit Enter

 

this should say:

 

SERVICE_NAME: dhcp
        TYPE               : 30  WIN32
        STATE              : 4  RUNNING
                                (STOPPABLE, NOT_PAUSABLE, ACCEPTS_SHUTDOWN)
        WIN32_EXIT_CODE    : 0  (0x0)
        SERVICE_EXIT_CODE  : 0  (0x0)
        CHECKPOINT         : 0x0
        WAIT_HINT          : 0x0

Does it?

[RKinner]

What version of Windows?

 

Open an Elevated Command Prompt:
Win 7: Start, All Programs, Accessories then right click on Command Prompt and Run as Administrator
Win 8: http://www.eightforu...indows-8-a.html
win 10: http://www.howtogeek...-in-windows-10/

Type:

ipconfig  /all

hit Enter.

You should get something like:

 

Windows IP Configuration

   Host Name . . . . . . . . . . . . : TVguy
   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. . . . . . . . . : 44-8A-5B-C0-D8-C7
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.1.100(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Wednesday, January 15, 2020 5:45:40 AM
   Lease Expires . . . . . . . . . . : Thursday, January 23, 2020 7:45:33 PM
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCP Server . . . . . . . . . . . : 192.168.1.1
   DNS Servers . . . . . . . . . . . : 192.168.1.1
   NetBIOS over Tcpip. . . . . . . . : Disabled

 

 

You may have some IPv6 stuff in addition.  The two items in bold should both say YES>  Do they?

 

What IPv4 address do you have?

 

Now type:

sc  query  dhcp

 

hit Enter

 

this should say:

 

SERVICE_NAME: dhcp
        TYPE               : 30  WIN32
        STATE              : 4  RUNNING
                                (STOPPABLE, NOT_PAUSABLE, ACCEPTS_SHUTDOWN)
        WIN32_EXIT_CODE    : 0  (0x0)
        SERVICE_EXIT_CODE  : 0  (0x0)
        CHECKPOINT         : 0x0
        WAIT_HINT          : 0x0

Does it?

[Eonshine]

So your modem has a router feature AND you want to coonect your personal router to it.
This requires the modem+router to be configured into BRIDGE mode to allow the ISP to configure personal router with DHCP

 

[Eonshine]

See this article https://www.devicetr...-configuration/

Hope it will helps you