DNS problem???

**rtjr** · October 11th, 2011, 12:44 PM

Hello I am having a problem with my laptop. I cannot browse the internet at all. I have it set up on a private ip scheme and I have another pc with the same scheme that works fine. I can put an ip address in the browser and it will resolve but cannot browse by name at all. I have looked at the host file and it has only the default 127.0.0.1 entry. I can ping the gateway and the dns server I have set up. When I tracert to any www address I get "unable to resolve target system name". I am obviously missing something. I have uninstalled the NIC and re-installed it.

Can anyone help....please???

**GroundZero3** · October 11th, 2011, 12:52 PM

What kind of internet connection do you have? What is your network design?

Please post an ipconfig /all

**rtjr** · October 11th, 2011, 01:02 PM

I have a private LAN with a T-1
IP Address 10.x.x.x
subnet mask 255.255.x.x
Default Gateway 10.x.x.x
DNS Server 10.x.x.x
Secondary DNS set as the ISP provided address

I am sorry I cannot provide details, hope this helps

**GroundZero3** · October 11th, 2011, 01:35 PM

I assume the first DNS server you have in there can do DNS resolution? Is that configured manually or by DHCP?

Try setting the DNS server address to 8.8.8.8 and 8.8.4.4 (both google public DNS servers)

**rtjr** · October 11th, 2011, 01:42 PM

Yes the first address is a DNS server it is configured manually and I have another pc on the same scheme but up one address and it works fine. I tried the 8.8.8.8 DNS and still no internet. When I tracert Google I get "unable to resolve target system name". When I use nslookup It resolves the ip and if I put the ip in the browser the page resolves???

**GroundZero3** · October 11th, 2011, 01:49 PM

Were you hit with any kind of infection on this computer by chance?

**rtjr** · October 11th, 2011, 02:08 PM

I think so I run regular scans with malwarebytes and ms safety scanner, and it has had a few minor bugs, my kid is always using it. Last scan came up empty.

**GroundZero3** · October 11th, 2011, 02:10 PM

I suggest running:

<a href="http://www.superantispyware.com/superantispyware.html?rid=4348">SuperAntiSpyware</a>.com | Remove Malware | Remove Spyware - AntiMalware, AntiSpyware, AntiAdware!

And look into this:

SpeedGuide.net :: How to repair TCP/IP and Winsock

**vass0922** · October 11th, 2011, 03:35 PM

/\---- +1

malware can regularly cause issues like this.

have you tried a different browser?
chrome? firefox?
make sure if you're using FF that its not set to use a proxy

**rtjr** · October 11th, 2011, 03:40 PM

Thanks vass0922, I have tried IE, FF, and Chrome, same issue on each, trying out some suggested scanners thanks to GroundZero3. I have also tried
netsh int ip reset reset.log
netsh winsock reset
netsh firewall reset

still no luck