windows8 dns lookup failures
I have a new desktop running windows8 - worked fine for a couple of weeks but no has no working web browser as the DNS lookup does not work
I cannot browse to www.google.com but can browse to 74.125.129.105
If I do an nslookup, it gives me the correct answer
I have disabled IPv6 but with no difference.
I have manually applied a static IP address and DNS (8.8.8.8) but with no difference.
I have reset the IP stack and Winsock but again with no difference.
I am running other computers, Windows7 and 8 with no issues. All are using DHCP with the same settings.
Any other ideas or suggestions?
Thanks
John
I cannot browse to www.google.com but can browse to 74.125.129.105
If I do an nslookup, it gives me the correct answer
I have disabled IPv6 but with no difference.
I have manually applied a static IP address and DNS (8.8.8.8) but with no difference.
I have reset the IP stack and Winsock but again with no difference.
I am running other computers, Windows7 and 8 with no issues. All are using DHCP with the same settings.
Any other ideas or suggestions?
Thanks
John
Paul MacDonald
I'd look for malware of some sort. Also check to see what's in the hosts file, if anything.
Can this computer ping internal and external addresses?
What antivirus program you running?
Is firewall enabled or disabled?
enabled check settings
What antivirus program you running?
Is firewall enabled or disabled?
enabled check settings
I second paulmacd, definitely could be malware related. Try running one of the following:
Malwarebytes Antimalware
SuperAntiSpyware
Both are available on http://filehippo.com
Also, if you need help locating the hosts file, you can find it here:
c:\windows\system32\driver
To view the content of the hosts file, right-click and select open with, then choose notepad.
Here's a great writeup on hosts file
http://www.bleepingcomputer.com/tutorials/hosts-files-explained/
Malwarebytes Antimalware
SuperAntiSpyware
Both are available on http://filehippo.com
Also, if you need help locating the hosts file, you can find it here:
c:\windows\system32\driver
To view the content of the hosts file, right-click and select open with, then choose notepad.
Here's a great writeup on hosts file
http://www.bleepingcomputer.com/tutorials/hosts-files-explained/
ASKER
I have run malwarebytes on it with no findings.
hosts. is empty apart from the default txt
It did have Norton Internet Security on it but this has been removed so it is now running the built-in antivirus and firewall and both are enabled
hosts. is empty apart from the default txt
It did have Norton Internet Security on it but this has been removed so it is now running the built-in antivirus and firewall and both are enabled
Maybe try running this nifty program:
http://www.tweaking.com/content/page/windows_repair_all_in_one.html
It works wonders on fixing a bunch of problems that malware is known to cause, which includes DNS issues. I'd go ahead and skip the MBAM scan since it'll prompt you to do so.
http://www.tweaking.com/content/page/windows_repair_all_in_one.html
It works wonders on fixing a bunch of problems that malware is known to cause, which includes DNS issues. I'd go ahead and skip the MBAM scan since it'll prompt you to do so.
ASKER
tweaking software says it fixed a couple of things but not the DNS issue.
I modified the hosts file to add the IP address for www.google.com but web browsing and ping to the www.google.com still does not work.
If I browse or ping the IP address, it does work!
It looks like the DNS translation is not working somehow.
Is it possible to remove and reinstall TCP/IP completely rather than just reseting the stack?
I modified the hosts file to add the IP address for www.google.com but web browsing and ping to the www.google.com still does not work.
If I browse or ping the IP address, it does work!
It looks like the DNS translation is not working somehow.
Is it possible to remove and reinstall TCP/IP completely rather than just reseting the stack?
How many network cards to you have installed? (both wired and wireless)
Could you try disabling whichever one you are not using and see if that helps? I've seen sometimes where the traffic gets stuck because it tries to go out through the wrong adapter.
Also, check the order in which windows processes each adapter:
Open network and sharing center
Click Change adapter settings
click Advanced > Advanced Settings
In the connections: list, make sure the network card you are using is on the top
Could you try disabling whichever one you are not using and see if that helps? I've seen sometimes where the traffic gets stuck because it tries to go out through the wrong adapter.
Also, check the order in which windows processes each adapter:
Open network and sharing center
Click Change adapter settings
click Advanced > Advanced Settings
In the connections: list, make sure the network card you are using is on the top
ASKER CERTIFIED SOLUTION
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ASKER
figured it out myself