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I can't access any http sites but I can access https sites, use e-mail, skype, etc. What can I do to fix this?

Posted on 2007-11-27
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Last Modified: 2013-12-08
Yesterday I downloaded and installed McAfee's Site Advisor. From that moment I have been unable to access any http sites although my connection is fine for all other connectivity issues including accessing https sites, using e-mail, skype. Even my toolbars are actively fetching info from regular web sites (not secure). It only affects 1 computer in my home network. Doesn't matter if I use IE or Firefox. I've uninstalled Site Advisor. Didn't help.
I followed another thread which suggested that reinstalling TCP/IP will solve the problem. I did this using Microsoft's Guided Help to resetting TCP/IP (only way I found to reinstall (actually reset not reinstall but this may be my issue)). No luck yet.
Any suggestions?
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Question by:elliotprince
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7 Comments
 
LVL 97

Expert Comment

by:war1
ID: 20358551
Hello elliotprince,

Run this script to fix your connection. The script reinstall winsock, TCP/IP stack, and HOSTS file.
http://downloads.subratam.org/WinsockFix.zip

1. Clear your DNS cache.  Go to Start > Run and type CMD
and hit OK.
At the command prompt, type ipconfig /flushDNS
and hit OK. Then test the http website like www.google.com

2. Clear your cache.  Go to Tools > Internet Options > General tab.  Under Temporary Internet Files, click "Delete Files" button. Also click "Delete Cookies" button. Click OK. Then test.

3. If no joy, check if your PC is blocking the site.  Do a search for HOSTS file and open it with an editor like Notepad. Delete any line that has the blocked site in it.

HOSTS file is located in
Windows XP      =      C:\WINDOWS\SYSTEM32\DRIVERS\ETC
Windows 2K     =     C:\WINNT\SYSTEM32\DRIVERS\ETC
Win 98/ME     =     C:\WINDOWS

It is a hidden file. Go to any folder and select Tools > Folders Options > View. Check "Show hidden files and folders". Click OK.

4a. If you are using Internet Explorer, check if the site is restricted or blocked.  Go to Tools > Internet Options > Security. Hightlight Restricted Sites and see if the blocked site is located there.

4b. Also under Content tab > Content Advisor, check if the site is restricted there. Remove it.

4c. Also, under Security tab, add the website to your trusted zone.

5. Check if antispyware, antivirus, or firewall is blocking the website.

Hope this helps!
war1
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Author Comment

by:elliotprince
ID: 20358904
Hi. Thanks for the reply. Tried it but no luck. Any other suggestions? In a thread I read from a year ago there was a solution to a similar problem involving reinstalling TCP/IP. Is this worth trying and if yes, how do I do it?

Thanks
Elliot
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LVL 97

Accepted Solution

by:
war1 earned 500 total points
ID: 20359217
At the command prompt, type netsh winsock reset

The script that I posted

http://downloads.subratam.org/WinsockFix.zip

reinstalls the TCP/IP stack.  So if you have done that, then you have already reinstall TCP/IP.
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Author Comment

by:elliotprince
ID: 20359746
Do I need to perform these steps in a specific order? I had previously typed the netsh winsock reset command before running WinsockFix. Should I rerun netsh?
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LVL 97

Expert Comment

by:war1
ID: 20359851
No, you do not need to run the command in any particular order.
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