Internet browser or Internet doesn't work but can ping other websites successfully.

These programs will fix a situation where all of the following are true:

the computer can get a valid IP address
the computer can ping DNS numbers
the computer can be pinged from other computers
all other network services do not work (Telnet, ftp and Web browsers)

WinSock XP Fix
Fix XP internet connectivity

WinSock XP Fix offers a last resort if your Internet connectivity has been corrupted due to invalid or removed registry entries. It can often cure the problem of lost connections after the removal of Adware components or improper uninstall of firewall applications or other tools that modify the XP network and Winsock settings. If you encounter connection problems after removing network related software, Adware or after registry clean-up; and all other ways fail, then give WinSock XP Fix a try. It can create a registry backup of your current settings, so it is fairly safe to use. We actually tested it on a test machine that was having a Winsock problem due to some Adware removal, and after running the utility and rebooting, the connectivity was restored.

Winsock XP Fix


Repairs Winsock 2 settings, caused by buggy or improperly-removed Internet software, that result in loss of Internet access.
LSP-Fix is a free Windows utility to repair a loss of Internet access associated with certain types of software. This type of software, known as a Layered Service Provider or LSP, typically handles low-level Internet-related tasks, and data is passed through a chain of these programs on its way to and from the Internet. However, due to bugs in the LSP software or deletion of the software, this chain can get broken, causing the Internet connection to become inaccessible

Unfortunately, problematic LSP software, including malware/spyware, is sometimes quietly installed by unrelated products such as file-sharing programs, sneaking onto a system unannounced. In fact, in many cases, the user does not know of its existence until something goes wrong, and he/she can no longer access Web sites. Historically,* (NEWDOTNET) and WebHancer* (often bundled with file-sharing utilities, DVD player software, and other free downloads) have been the worst offenders, but the problem can be caused by any improperly-written Layered Service Provider software, or the deletion of any LSP program's files. LSP-Fix repairs the LSP chain by removing the entries left behind when LSP software is removed by hand (or when errors in the software itself break the LSP chain), and removing any gaps in the chain.


LSP-Fix is not a malware removal utility and does not target specific products. LSP-Fix does not delete any files

LSP-Fix (.zip) v1.1 - includes the program, documentation and source code

LSP chains entirely verified on program start, and status (errors / no errors) now displayed on the program main window.
If Winsock2 registry keys are inaccessible, LSP-Fix now warns the user to log in as Administrator and retry, rather than reporting the key as missing. Released under the GNU General Public License.


Try resetting the IP stack:
go to a command prompt and type
netsh int ip reset reset.txt

Another suggestion:

Looking at this registry key:

hkey_local_machine\system\current control set\control\lsa -> restrictanonamous key

Change the 1 (if present) to a 0.