Internet Access Issues

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Contents


Internet Explorer Blocked by ZoneAlarm
Workaround to Sudden Loss of Internet Access Problem
ZoneAlarm fails to start, displaying missing root certificate errors
Computer Tips Index

 


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Internet Explorer Blocked by ZoneAlarm

Outline

My primary browser is Mozilla Firefox.  Although I access the Web everyday, I hadn't used Internet Explorer (IE) for at least a week.

Everything except Internet Explorer can access the Internet without a problem.

When I try to access any Web site with IE, I can see that the domain name usually resolves to an IP address in the status bar on the bottom, but IE never displays the Web page, and usually times out.

Affected Programs

The last updates to IE, as listed in Windows Update, are:

Update

Date

Source

Cumulative Security Update for Internet Explorer 7 for Windows XP (KB944533)
http://support.microsoft.com/kb/944533/en-us

Friday, February 15, 2008

Automatic Updates

Cumulative Security Update for Internet Explorer 7 for Windows XP (KB942615)

Wednesday, December 12, 2007

Automatic Updates

Troubleshooting

Cause

Fix / Resolution

The following worked:

  1. Reboot Windows into Safe Mode
  2. Login as a member of the Administrators group
  3. Delete the following ZoneAlarm files from C:\WINDOWS\Internet Logs\
  4. Reboot Windows into Normal Mode
  5. After rebooting into normal mode, set the new network found as Trusted.

 

 


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Workaround to Sudden Loss of Internet Access Problem

Date Published : 8 July 2008

Date Last Revised : 14 July 2008

Overview : Microsoft Update KB951748 is known to cause loss of internet access for ZoneAlarm users on Windows XP/2000. Windows Vista users are not affected.

Impact : Sudden loss of internet access

Platforms Affected : ZoneAlarm Free, ZoneAlarm Pro, ZoneAlarm AntiVirus, ZoneAlarm Anti-Spyware, and ZoneAlarm Security Suite

Recommended Actions

Download and install the latest version of ZoneAlarm which should solve the loss of internet access problem (English only):

Once you have installed the new version of your product go to "Start button > Windows Update" and re-install the Microsoft patch.

- or follow the directions below.

Option 1: Move Internet Zone slider to Medium

  1. Navigate to the "ZoneAlarm Firewall" panel
  2. Click on the "Firewall" tab
  3. Move the "Internet Zone" slider to medium

Option 2: Uninstall the hotfix

  1. Click the "Start Menu"
  2. Click "Control Panel", or click "Settings" then "Control Panel"
  3. Click on "Add or Remove Programs"
  4. On the top of the add/remove programs dialog box, you should see a checkbox that says "show updates". Select this checkbox
  5. Scroll down until you see "Security update for Windows (KB951748)"
  6. Click "Remove" to uninstall the hotfix

Source: ZoneAlarm Security Advisory

Reference:

 


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ZoneAlarm fails to start, displaying missing root certificate errors

Environment

Issue

As of 7/15/2009 if you are running any ZoneAlarm product v6.5 or below, the following error messages are displayed when you log into Windows or try to manually start ZoneAlarm:

Validation failed for C:\WINDOWS\SYSTEM32\VSINIT.DLL. You probably are missing a necessary root certificate.

Validation failed for C:\WINDOWS\SYSTEM32\VSDATA.DLL. You probably are missing a necessary root certificate.

There is nothing wrong with your root certificates.

Observations:

Fix

  1. Change the date of the affected computer to before July 15, 2009
  2. Enable the Windows Firewall
  3. Uninstall ZoneAlarm
  4. Change the date back to the current date
  5. Reboot the computer
  6. Download and install ZoneAlarm v8.0 or newer.

Reference

 


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