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Problem with DNS configuration


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MaxRoy's Avatar
MaxRoy MaxRoy is offline
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23-May-2009, 08:38 PM #1
Problem with DNS configuration
Alright, I have been working at this for an eternity. I am connected to the net through a wired\wireless linksys router. My wireless connected PC is working as I am writing on this forum with it, it is a laptop that uses XP.

My problem is with my main PC connected by wire to the same router. That machine uses Vista 64bits. Vista tells me is the problem is

''There may be a problem with your Domain Name Server (DNS) configuration''

Now I've been trying to fix this stupid problem for ages. 've tried flushing my DNS, My TCP\IP is all set to automatically find the DNS. I've tried various CMD solutions I've found on the net, nothing's resolved my problem. I would love for any help provided, thank you in advance.

Last edited by MaxRoy; 24-May-2009 at 12:59 PM..
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23-May-2009, 09:13 PM #2
TCP/IP stack repair options for use with Windows Vista.

Start, All Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

In the command prompt window that opens, type type the following commands:

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

Reboot the machine.




Next, let's do these changes that may help to increase the compatibility of Vista with older networking devices:



Disable the IP Helper service:

1. Hold the Windows key and type R, enter "services.msc" (without the quotes) and press Enter
2. Scroll down to the IP Helper service, right click on it and select Properties
3. In the dropdown box that says "Automatic" or "Manual", set it to Disabled and then click on "Apply"
4. Then click on "Stop" to stop the service from running in the current session
5. Click OK to exit the dialog



Disable IPv6:

1. Hold the Windows key and type R, enter "ncpa.cpl" (without the quotes) and press Enter
2. Right click on each network connection and select "Properties"
3. Remove the checkmark from the box next to "Internet Protocol Version 6 (TCP/IPv6)
4. Click OK to exit the dialog

NOTE: You should do this for each network connection.



Disable the DHCP Broadcast Flag:

Link: http://support.microsoft.com/default.aspx/kb/928233
  1. Hold the Windows key and type R, enter regedit and press Enter.
  2. Locate and then click the following registry subkey:
  3. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Inter faces\{GUID}
  4. In this registry path, click the (GUID) subkey to be updated.
  5. If the key DhcpConnForceBroadcastFlag does not exist, use the Edit menu, point to New, and then click DWORD (32-bit) Value. In the New Value #1 box, type DhcpConnForceBroadcastFlag, and then press ENTER. If the key exists, skip this step.
  6. Right-click DhcpConnForceBroadcastFlag, and then click Modify.
  7. In the Value data box, type 0, and then click OK.
  8. Close Registry Editor.
NOTE: You should do this for each and every GUID subkey.
NOTE2: (GUID) is a mnemonic for the individual subkeys, the actual text "GUID" does not appaer.




The only program I'm aware of that currently relies on IPv6 is the new Windows Meeting Space. The first 2 changes will cause that program not to work - but will leave all of your normal (IPv4) connections unaffected. If it causes problems that you can't overcome, simply revert back to the original settings.
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23-May-2009, 09:43 PM #3
Thank you for the quick answer John.

I tried everything you listed, and yet I still can't get it to work. It seems hopeless, any other solutions?

Also, maybe this will help when I used CMD to do
netsh int ivp4 reset reset.log
I got this

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Windows\system32>netsh int ivp4 reset reset.log
Reseting Echo Request, failed.
Access is denied.

Reseting Interface, OK!
A reboot is required to complete this action.



Maybe that's part of the problem? if not. I really do need more help

thanks in advance.
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23-May-2009, 09:55 PM #4
Make sure you have the latest 64-bit Vista driver from your PC (or motherboard) manufacturer's web site for the ethernet controller.

For reasons unknown sometimes a computer just will not work with the router's LAN address as the DNS server. Try setting OpenDNS servers on the computer. Only Step 1 is needed.
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23-May-2009, 11:15 PM #5
I'm pretty sure I have the latest driver. If I don't how do I download and install the latest ones to my PC that doesn't have net access

As for the OpenDNS thing. I'm not quite sure I understand exactly what you mean, with, only step 1 is needed.
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24-May-2009, 10:10 AM #6
You download the driver using a computer that does have internet access. Get it onto removable media (CD, USB flash drive, etc.) and copy it to the crippled PC. The file will be an executable that you run to install the driver.

By "only step 1 is needed" for OpenDNS I mean that step 2 "Create a free OpenDNS account" and step 3 "Manage Settings in your Dashboard" are not needed to attempt to fix your issue.
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24-May-2009, 10:59 AM #7
Alright well my Network ''card'' is built into my motherboard. My motherboard is an Asus P6T Deluxe. I went to their site and compared the driver version with mine. I have the latest Network driver for my mother board.

So now I'm trying OpenDNS. I'm going through the step one instructions and now I'm stuck at trying to open my linksys into a browser with this address http://192.168.1.1/ which they tell me to use. And I only get a not found page, it's not letting me access.

And once more I am stumped. Any idea what I can do next please? How I can do the OpenDNS to the end? Or if anyone has any other solutions? Once more I thank you for your patience and your help.
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24-May-2009, 11:23 AM #8
In post # 4 I suggested that maybe the computer is not working with having the DNS address being the router and advised using the OpenDNS servers on the computer. Follow the OpenDNS procedure for Computer.
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24-May-2009, 11:38 AM #9
Ah I'm sorry. I need to learn to read instructions more thoroughly. My fault for being careless. Alright I tried the OpenDNS, reset my connection and rebooted my PC. It didn't seem to work. It says it can't communicate with the OpenDNS server. Which I find stupid. Because when I check my connection's status, there's packet being sent and received... My connection is there, it just won't let me use it.

Any other idea what the problem could be and how to fix it? Thanks in advance once more.
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24-May-2009, 11:45 AM #10
Whatever hardware router you have, do you have a CD of its documentation? Are you able to visit the router mfg's web site and download the documentation.

My take on your problem is that your router has you ISPs default primary and secondary DNS web sites encoded. You should be able to access the router which is typically the address: http:192.168.1.1 as you have tried. Perhaps you can try the command (arp -a) and hopefully it will display the router's IP address if it is not 192.168.1.1. When you are able to talk to the router via its internal IP address, it should give you a login scree for the admin account, so that is why I recommend you consult the router's documentation manual for that information, unless you changed it which is always a good idea - especially if you remember it.

Once you are able to login to the router's admin account, you can then change the Primary and Secondary DNS IP addresses to OpenDNS.208.67.220.220, 208.67.222.222).

Note: The wireless connection probably works because the router has both a wireless and Coax WAN connections. It is the Coax (wired) connection path information concerning DNS that is not working - and both may be hooked into your ISP's DNS servers, so the problem probably has more to do with the wired (Coax) setup inside the router than anything else.

-- Tom
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24-May-2009, 12:09 PM #11
Alright well Tom, I tried what you said and still no dice. The router is a work router my mom uses so there's probably a technician or something that changed the password, and knowing my mom, she didn't care to ask for that password.

I've about given up. I'll be calling in an outside technician from a PC company in my town. Don't know how much it'll cost but it'll be better then having to buy a new machine because if I don't stop trying I'm going to throw this piece of **** out the window.

thank you again everyone. I appreciate the help and will try and remember to post back here if the technician I call fixes this problem.
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24-May-2009, 02:52 PM #12
Please show the following.

NOTE THAT YOU GET THE ACTUAL ADDRESS TO USE IN THE FIRST THREE PINGS FROM THE PRECEDING INCONFIG /ALL OUTPUT.

Start, Run, CMD, OK to open a command prompt:
(For Vista type CMD in the Search box after Start)

Type the following commands:

IPCONFIG /ALL

[Note that there is no space between the slash and ALL.]

PING <IP Address>

PING <Default Gateway>

PING <DNS Server>

PING 69.147.114.224

PING yahoo.com


Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If necessary use a text file and removable media to copy the results to a computer with internet access.
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