Can ping IP address, not www addresses

Windows 7 laptop may have been hit with a virus that caused damage, but cannot figure this out: we have a laptop that can connect to the router & ping public IP addresses, but cannot display anything as far as web pages or ping other network computers by host name.  Here's what I tried:

Uninstalling / reinstalling the WiFi drivers
Factory resetting the router
Manually setting the laptops IP settings and DNS settings
Checking the host file
Sfc /scannow

Nothing works.  Is there anything else?
LVL 11
epichero22Asked:
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Thomas GrassiSystems AdministratorCommented:
Do a ipconfig /all   post results

On Wifi are you obtaining a valid ip address?
Again ipconfig /all what are the results  please post
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epichero22Author Commented:
Yes, all ipconfig results are coherent.  There is another computer on the same network that's working OK.
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Thomas GrassiSystems AdministratorCommented:
If you can ping by ip address and not by name then you have a DNS issue

What about connecting the laptop with a Ethernet cable to your switch
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epichero22Author Commented:
Another update: while I am able to ping it, I cannot reach the router's config page from a web browser by using the IP address.
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JohnBusiness Consultant (Owner)Commented:
Try running TCP/IP Reset.

Open cmd.exe with Run as Administrator
Then  netsh int ip reset c:\resetlog.txt
Also, ipconfig /flushdns followed by net stop dnscache followed by net start dnscache
Then restart the computer

See if this helps. If not and since SFC did not work, you may need to try a Windows 7 Repair Install. You need a working recovery partition or the Windows 7 DVD. Here is a Seven Forums tutorial to assist.

http://www.sevenforums.com/tutorials/3413-repair-install.html
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Brett CrawleyZone LeaderCommented:
Could be local windows firewall settings blocking certain protocols such as http or certain applications
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epichero22Author Commented:
Tried disabling Windows Firewall, didn't work.
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Thomas GrassiSystems AdministratorCommented:
When this laptop is on your network can you ping it by name and ip address from another computer?
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Thomas GrassiSystems AdministratorCommented:
Another thing

What device is issuing DHCP?

If the router is does the router have an open lan port? of so plug directly into router

What happens

ipconfig /all post results
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Bjarte FjellandCommented:
Hi,

If there is an other computer that works correctly, could you check the routing table?

I use "Netstat -r" in CMD for that and compare your result.

And another thing, what happens when you "ping 127.0.0.1" and add a switch -a infront the IP: ping -a 127.0.0.1
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Salah Eddine ELMRABETTechnical Lead Manager (Owner)Commented:
Hi,

If you can ping the IP and then using FQDN and you cannot access any things using your browser even the router web management interface so as you said you have a malware infecting your Laptop.

You have to download a malware remover and scan your laptop.

Some times the malware removers cannot identify the malware, so you can use Ccleaner that will help you identify process and automatically started programs also can check registry errors so can manually delete any soupcon file or program.

Regards.

Salah
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JohnBusiness Consultant (Owner)Commented:
Did you try resetting TCP/IP ?
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Fred MarshallPrincipalCommented:
What happens if you run this command line command:

nslookup www.google.com

Either you will get a Google IP address or addresses or not.
If not, then it appears that DNS isn't working.
Try setting one of the DNS addreesses to 8.8.8.8
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epichero22Author Commented:
Ended up formatting the computer.
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JohnBusiness Consultant (Owner)Commented:
@epichero22  - Thanks for the update and I was happy to help.
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