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Author Topic: DNS server 192.168.1.251? (RESOLVED)  (Read 19882 times)

Goldenpaww

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DNS server 192.168.1.251? (RESOLVED)
« on: February 07, 2014, 11:59:49 AM »

Greetings,

This problem is driving me CRAZY. I had a NetGear R7000 and was getting the DNS and Gateway as 192.168.1.251.

I returned that and got the D-Link and the gateway is correct, but the DNS is the same.

I have the current firmware and NIC driver. This happens over wired and wireless.

Is there some setting I am missing?

Thanks,
« Last Edit: February 09, 2014, 11:23:30 AM by FurryNutz »
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FurryNutz

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Re: DNS server 192.168.1.251?
« Reply #1 on: February 07, 2014, 12:25:31 PM »

Link>Welcome!

  • What Hardware version is your router? Look at sticker under router.
  • Link>What Firmware version is currently loaded? Found on the routers web page under status.
  • What region are you located?

I this DNS being seen on the routers status page?

Internet Service Provider and Modem Configurations
  • What ISP Service do you have? Cable or DSL?
  • What ISP Modem Mfr. and model # do you have?
  • What ISP Modem service link speeds UP and Down do you have?
  • Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
  • For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.

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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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Goldenpaww

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Re: DNS server 192.168.1.251?
« Reply #2 on: February 07, 2014, 12:40:57 PM »

Version A1
Firmware 1.07

From status page:
MAC Address : 9c:d6:43:c7:9e:3b
IP Address :
Subnet Mask : 255.255.252.0
Default Gateway :
Primary DNS Server : 216.172.112.72
Secondary DNS Server : 69.60.160.196

ISP info
Sjoblergs Cable
Modem Motorola SB5101U
speed is about 5M down 512 up
« Last Edit: February 07, 2014, 12:45:50 PM by FurryNutz »
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FurryNutz

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Re: DNS server 192.168.1.251?
« Reply #3 on: February 07, 2014, 12:44:05 PM »

Where are you seeing the 192.168.1.251? On the PC?

Ensure your network adapter settings are set to auto obtain for IP and DNS address. Remove any static address options.

Do a ipconfig /flushdns on the PC from a command line or reboot the PC.
« Last Edit: February 07, 2014, 12:53:25 PM by FurryNutz »
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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Goldenpaww

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Re: DNS server 192.168.1.251?
« Reply #4 on: February 07, 2014, 01:24:52 PM »

did that, did not work.

Looking in the registry, I found these settings, but changeing does nothing and they change back.

HKLM\SYSTEM\ControlSet001\servicesParameters
DhcpNameServer is 192.168.1.251
And
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\Tcpip\Parameters\Interfaces\{F1A12586-7F6E-4651-BB71-82F1A3FAE6E1}
DhcpDefaultGateway and DhcpNameServer is 192.168.1.251
and
HKLM\SYSTEM\ControlSet001\servicesParameters
DhcpNameServer is 192.168.1.251
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FurryNutz

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Re: DNS server 192.168.1.251?
« Reply #5 on: February 07, 2014, 01:30:49 PM »

Something has that set on this PC and shouldn't, What OS platform is this PC?

Try this:
ipconfig /release
ipconfig /flushdns
ipconfig /renew

If that fails, I would download the latest drivers for your PCs network card if you can get them. Disconnect the lan cable from the router. Remove the drivers from Windows or uninstall them. Then update to the new ones. Reboot and ask the PC is rebooting, connect the LAN cable.

This is not coming from the router.

  • Was a Factory Reset performed before and after any firmware updates then set up from scratch?
FW Update Process

Also try a different PC or device, does it have the same info?
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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Goldenpaww

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Re: DNS server 192.168.1.251?
« Reply #6 on: February 07, 2014, 03:22:52 PM »

ok, reset or nothing worked, but may have found an odd thing.

when I set my Wi-Fi to my old name the error starts. If I name it to say Test, it works fine.

The only wireless devices are my phone, tablet, laptop, WiiU, and security camera.

After playing, it seems the wireless bridge adapter for the security system is the cause.

Netgear WNC2001.

As soon as I plug it in, my dns goes to 192.168.1.251. I unplug it and release/renew and I'm back to 192.168.0.1
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FurryNutz

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Re: DNS server 192.168.1.251? (RESOLVED)
« Reply #7 on: February 07, 2014, 03:41:09 PM »

Glad you found the issue.

You'll need to refer to NG support information to ensure that you set that bridge up correctly if you continue to use it. 

Enjoy.
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Goldenpaww

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Re: DNS server 192.168.1.251?
« Reply #8 on: February 07, 2014, 03:54:39 PM »

I reset it and re set it up and it seems to be working correctly. it has an internal DHCP client and I think it was conflicting with the router.
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FurryNutz

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Re: DNS server 192.168.1.251?
« Reply #9 on: February 07, 2014, 04:04:46 PM »

Yes, some bridges or AP have an internal Server. Glad you got it working. Enjoy now.
 ;)
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Goldenpaww

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Re: DNS server 192.168.1.251?
« Reply #10 on: February 07, 2014, 04:13:18 PM »

Will do, and Thank You for all your help.
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FurryNutz

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Re: DNS server 192.168.1.251?
« Reply #11 on: February 07, 2014, 04:13:50 PM »

Come back and visit if you need any thing. Have a great weekend.  ;D
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