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Can't access internet

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by n4syth

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Computer: Toshiba Satellite 1400 Model PS140C-03D07P
OS: WinXP Home
Network adapter: D-Link DWL-G650
Internet Security: PC-cillin Internet Security 2006 --- uninstalled

Set up this computer with wireless access a week ago. All was working great.
Customer used it for a few days with no problems then one morning was unable to access the internet..... after installing PC-cillin

Wireless connects to network -- good signal
Am able to release and renew IP.
Can successfully Ping gateway and sites on internet but when try to access with IE or Firefox....... Website found. Waiting for reply.........
The page could not be displayed.
Unable to access email.

The Hosts file has only the localhost 127.0.0.1
Have run winsockxpfix_1
Have reset TCP/IP using netsh
Have cleaned out temp files & cookies
Have cleaned registry.....

Have also made attempts with wired connection --- no different.....
NO Firewalls.

Have also discovered that Regedit is missing. Anyone know how to reinstall? or is it possible to copy from another computer???

Anyone else got any ideas short of reloading....????
Further quirk... CD drive is broken and customer chose to replace with external, making reload of XP difficult/impossible....

10 replies

by wbf

i had a similar problem with a missing registry, im not sure what i downloaded but i know i scaned heavily the pc with a well known anti virus eventually got rid of the hidden culprit also try downloading ad-aware free spybot search and destroy free and avg anti virus free,cant be of more help but i know its virus related hope its some help

by craig321

Copy regedit from your Windows CD and place it in C:\Windows or you might see it in C:\WINDOWS\ServicePackFiles\i386

For your internet problem run ipconfig /all

and look at your DNS servers and see if you can ping them. Look at a machine that isnt having a problem and see if the DNS info is the same. Try issuing the ipconfig/flushdns command.

Double check that you don't have an incorrect or not needed Proxy server assigned.

For the Internet Explorer - Tools / Internet Options / Connections tab / LAN settings button. Uncheck both Automatically detect settings and Use a proxy server for your LAN.

by wcp

You did not mention that you ran antispyware. Some spyware disrupt internet connection.

1. Run cleanup programs in Safe Mode.
CClean http://tinyurl.com/bvtbj
CleanUp! 4.0. http://tinyurl.com/bopxo

2. Run antispyware in Safe Mode. Programs and Updates can be burnt to a CD or use USB Flash Drive.
Ad-Aware SE Personal http://tinyurl.com/9nj9n Download and unzip the Update file, Defs.Ref, in Program Files\Lavasoft\Ad-aware SE Personal folder.
Spybot S&D http://tinyurl.com/yrwy2 Make sure to install Detection Updates.
Ewido http://tinyurl.com/5b3qh
HJT http://tinyurl.com/u5su
CWShredder http://tinyurl.com/4y7hy
Adware Away http://tinyurl.com/z29t6

3. Run antivirus in Safe Mode.
Virobot Expert 30 day trial version: http://tinyurl.com/ryl4b
Latest Virus definition: http://tinyurl.com/r8us3

4. Reinstall IE. The procedure is different from SP1 to SP2.
http://tinyurl.com/95vhm
If you need more info, please add a comment.

by wcp

For Ewido updates (Full database and Daily Signatures), download them from here.

by n4syth

Thanks everyone for your suggestions...
As I was scanning and 'tweaking' I discovered that this client had once had ZoneAlarm on his computer, and on the chance that something was left behind by uninstalling, I installed the most current version (ignoring previous settings)and could immediately access the internet....
I then turned it off, set it to NOT start on startup, rebooted, uninstalled, then manually removed 'leftovers' and continue to have internet access!!

Thanks again for your suggestions. I hope this answer will be helpful to you at some time as well.

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