Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Mind boggling network problem -"Doesn't have a valid IP configuration"


20 Feb 2012   #1

Windows 7 Home Premium 64bit
 
 
Mind boggling network problem -"Doesn't have a valid IP configuration"

Hi everyone I've run into a problem that I really don't understand and I was hoping somebody here could help me.

First a little background so you can understand the situation. My set up is that I live in a two story house and have my cable modem and a D-Link ethernet switch in my den on the ground floor. I connect to the internet via this switch, and the switch also leads upstairs to the bedrooms, where we have a D-Link wireless router. This wireless router then provides internet to all of the bedrooms (with their laptops and Ipads) upstairs, my Xbox and another computer. My computer downstairs has no wireless card so I have to access the net via a wired connection with this one.

Now everything was fine and all my devices, whether wired or wireless had access to the internet until one day, my computer in the den could NOT access the internet. I've tried all the suggestions I've seen on forums and nothing would work. I even tried moving my den computer upstairs and plugged it into the router, and it would work! I tried moving multiple laptops downstairs as well to see if it was just the computer and they also were not be able to access the internet via wired connection through the switch.
What WOULD work sometimes is if I restarted and reset the cable modem, then sometimes my downstairs internet would work. However, if the downstairs computer's internet would work, then the devices who rely on the wireless router to connect to the internet would then be unable to do so. So basically I can only have one or the other and I don't understand how and why.
The most common error message I get when trying to repair these (right clicking on the "Unidentified Network - no network access" and clicking troubleshoot problems) is that "Local Area Connection doesn't have a valid IP configuration." My ISP doesn't want to help because they say it could be my router. I've tried replacing my router. I've tried using the router downstairs. Basically no matter what I do, I can't get internet access to my entire house, only either JUST upstairs or JUST my den. I've spent hours trying to fix this, restarting my modem over and over hoping that both upstairs and downstairs internet would work, I'm really frustrated and hopefully somebody can help me out. Thanks!

Here is what my downstairs computer's ipconfig /all looks like when connected to the switch(cannot connect to the internet)

Windows IP Configuration

Host Name . . . . . . . . . . . . : SOJ-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 . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 1C-6F-65-D7-B0-B2
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5856:644a:636f:e5fa%11(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.229.250(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 236744549
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-F7-60-86-1C-6F-65-D7-B0-B2

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 Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
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

Tunnel adapter isatap.{8F3E58D5-9692-452F-B879-E60C00FAD9E9}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes


And this is what my laptop connected via wi-fi's ipconfig/all looks like (this CAN connect to the internet)

Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection 3:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
2
Physical Address. . . . . . . . . : 74-E5-0B-26-8F-1D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : 74-E5-0B-26-8F-1D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) WiFi Link 1000 BGN
Physical Address. . . . . . . . . : 74-E5-0B-26-8F-1C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::444f:f817:ed8e:8c30%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.197(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Sunday, February 19, 2012 5:45:40 PM
Lease Expires . . . . . . . . . . : Wednesday, February 22, 2012 12:37:08 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 326427915
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-0F-A6-7B-10-1F-74-11-1A-14

DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 10-1F-74-11-1A-14
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{0FF72F35-9BFE-4FF0-A113-816D6DF72FE1}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{50325D4D-4AEF-4ED5-9110-F1E1A8C1018B}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{863E594A-0333-4FC5-AB38-EEAE3F9376C7}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel 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. . . . . . . . . . . : 2001:0:4137:9e76:c64:2a85:90bb:da83(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::c64:2a85:90bb:da83%16(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{F7FF5E06-F7B9-4850-8157-5140021E34D9}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Thanks in advance again yall, hopefully somebody can help me

My System SpecsSystem Spec
.

21 Feb 2012   #2

Windows 7 Ultimate x64
 
 

Hello,

The problem is that your PC in the den isnt obtaining an IP address from the DHCP server which will be on the router.

Try setting up the PC with a static IP address to see if it resolves the problem.

How to Assign a Static IP Address in XP, Vista, or Windows 7 - How-To Geek



Dave
My System SpecsSystem Spec
21 Feb 2012   #3

Windows 7 Home Premium 64bit
 
 

Hi Dave,
Thanks for replying so quickly. I tried what you suggested but it still doesn't work. Instead of Windows telling me the ip configuration isn't valid, it says that it doesn't know why I can't connect to the internet when I try to get it to troubleshoot the connection. Any other suggestions or hypotheses on what might be wrong?
Thanks
My System SpecsSystem Spec
.


21 Feb 2012   #4

Windows 7 Ultimate x64
 
 

Can you give me an ipconfig /all when you have a static IP address please?

Also, if you ping your router does it respond?


Dave
My System SpecsSystem Spec
21 Feb 2012   #5

Windows 7 Home Premium 64bit
 
 

hi Dave, this is what I see when I type ipconfig/all
Windows IP Configuration

Host Name . . . . . . . . . . . . : SOJ-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 . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 1C-6F-65-D7-B0-B2
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 169.254.229.250(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 169.254.229.251
DNS Servers . . . . . . . . . . . : 169.254.229.251
169.254.0.0
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
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

Tunnel adapter isatap.{8F3E58D5-9692-452F-B879-E60C00FAD9E9}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

When I pinged the router it said that sent 4 packets, received 4 packets and no packets lost
My System SpecsSystem Spec
21 Feb 2012   #6

Windows 7 Ultimate x64
 
 

Hi there,

Your static address wants to be something like:

IP Address: 192.168.0.212
DNS Server: 192.168.0.1
Default Gateway: 192.168.0.1

Use this link to change your settings to the above and report back if you cant get on the internet still.
How to Assign a Static IP Address in XP, Vista, or Windows 7 - How-To Geek

Dave
My System SpecsSystem Spec
Reply

 Mind boggling network problem -"Doesn't have a valid IP configuration"




Thread Tools




Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 11:16 AM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33