Unable to Ping DNS Server on PC

November 21, 2016 at 15:27:18
Specs: Windows 10, Intel Duo E7500 // 4 GB
I've tried pinging my ISP's, Google's, Comcast's, they all time out. I've run the gauntlet in cmd as well, I've /flushdns and /registerdns, I then tried pinging Yahoo.com and then /printdns. Still, no cure. I even attempted booting I to safe mode to see if that would perhaps fix it, but no such luck, I was still unable to ping the address and was unable to access the internet. I tried seeing if the firewall was perhaps blocking it, so I turned it off and it did nothing. I saw a *very* similar thread on here about 5 or 6 years back about a guy who had essentially the same problem and got it fixed. Someone mentioned ISP's block DNS packets because of DDOS attacks? But that wouldn't explain Google and Comcast's unless if they block them too. I installed the telnet client to see if it would help ping DNS servers but to no avail. Thanks!

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#1
November 21, 2016 at 16:34:33
Okay, what does a tracert to google.com show?
I bet, you'll get a timeout.

Then, what do you get when tracert to e.g. 8.8.8.8 ?
If you get an answer, you have issues on your DNS configuration or DNS server, you've set in configuration.

Is there another computer, that can ping or tracert google,com or the ip address 8.8.8.8 and gets an answer?

You may post the output of:
tracert google.com

and
tracert 8.8.8.8


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#2
November 21, 2016 at 16:54:24
When I traced google.com it was unable to resolve the system name and when I traced 8.8.8.8 I was timed out every time.

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#3
November 22, 2016 at 07:37:15
And to my knowledge, unless if ChromeOS has a command prompt, this pc is the only way I can ping or tracert

message edited by bwestisthebest


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#4
November 22, 2016 at 08:22:00
Ok, so if I'm reading your original post correctly, you have no internet connectivity and cannot ping or traceroute externally (ie: on the internet). If this is correct, the first thing to look at is the PC configuration. Open a command prompt window and do an ipconfig /all and paste the output in here.

In a typical SOHO Router, home LAN setup, your router will typically have an IP like the following: 192.168.1.1

Your DHCP clients should show the router's LAN IP as their DNS/Default Gateway IP. If your client is not showing your router's LAN IP as it's DG or DNS then that's your problem and your router isn't correctly configured.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#5
November 22, 2016 at 10:56:07
What did you get, when you open CMD (command prompt) and type in:
ipconfig /all

Do you get an IP address other then 169.254.x.x ?
What is the IP of the DHCP server, listed there ?
What is the DNS IP address?
What is the default gateway address ?

Btw., the default gateway address is usually the ip address of your router.
So when you type this ip address into your internet browsers address bar, you should get the login screen of the routers web configuration interface.


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#6
November 22, 2016 at 15:55:05
I thank all of you for the support, however I am out of town until Friday due to Thanksgiving and so I am unable to work on it. I'll try the new suggestions once I get back home.

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#7
November 25, 2016 at 13:56:39
The DHCP server's ip address is: 192.168.0.1
DNS server's address is: 97.64.183.164
Default Gateway Address: 192.168.0.1
When I typed the gateways address into my browser it did indeed take me to the router manufacturer's website. Something new that didn't pop up before when I typed in ipconfig /all is "lease obtained" and "lease expires" then dates and times following. The date for both was today and the time for obtaining this lease was 3:38:36 pm and the time that it expired was 3:47:41 pm. What does that mean, this worries me. It is currently 3:57 in Central Time where I am.

message edited by bwestisthebest


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#8
November 25, 2016 at 16:26:36
I'm probably just going to take it up with my isp, it's been almost a week this has been going on, it's made it impossible to use my internet/wifi, and I just hope they'll they'll be leaving to get it sorted quickly. I thank everybody everybody who tried to help and that they have a happy holidays.

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#9
November 26, 2016 at 04:04:37
The lease time indicates, at what time your computer got the ip address assigned to.
When the lease expired is reached, and the computer has not used the ip address til that time, it gets released to use for other computers.

So when you turn on the computer, that had assigned this ip address, and it was released already, it gets a new ip address of the address pool.

Nothing, you have to worry about. Quite normal thing.

But, when you put in the gateway ip address to your internet browser and login to your router, you should be able to figure out your online status.

If the router shows, that there is no connection to your ISP, you have to call your ISP, that's right.

If your router is connected to the internet, you got an in house issue, where I guess, your ISP won't or can't help you.


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#10
November 26, 2016 at 05:28:49
The DHCP server's ip address is: 192.168.0.1
DNS server's address is: 97.64.183.164
Default Gateway Address: 192.168.0.1

Ok, the DNS server address is likely the root cause of the DNS resolution issue you're experiencing. It should be 192.168.0.1 also. If calling your ISP's support line doesn't work, try checking your router's settings and ensure it's doing DNS and also that the DNS IP is the router's LAN IP as well. If you're having trouble doing it yourself, call the router manufacturer's support line.

When I typed the gateways address into my browser it did indeed take me to the router manufacturer's website

That actually should be the router's web based management interface. Not the manufacturer's website.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#11
November 26, 2016 at 12:20:42
This is because 97.64.183.164 is not a dns server but the ip of mospanxc01.mcomdc.com as shown by nslookup

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

C:\Users\Charlie>nslookup google.com 97.64.183.164
Server: UnKnown
Address: 97.64.183.164

*** UnKnown can't find google.com: Query refused

Here are dns servers in Missouri or you can use google's dns servers
https://www.more.net/support/prefer...

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


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#12
November 26, 2016 at 12:23:05
Here is the nslookup results if I just look at the com

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

C:\Users\Charlie>nslookup mospanxc01.mcomdc.com
Server: cdns01.comcast.net
Address: 75.75.75.75

Non-authoritative answer:
Name: mospanxc01.mcomdc.com
Addresses: 2607:fdc8:1400::11
97.64.183.164

This is not a dns server

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#13
November 28, 2016 at 16:46:16
wanderer
Good to see you around again. I hope all is well with you.

bwestisthebest
Please excuse this aside.

message edited by Derek


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#14
December 1, 2016 at 09:50:20
you also Derek :-)

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