Fix: KB951748/Zone Alarm - Loss of connectivity

For those experiencing a loss of internet connectivity after installing KB951748 with Zone Alarm installed as the firewall, here's the fix by a Zone Alarm moderator:
http://forum.zonelabs.org/zonelabs/board/message?board.id=cfg&message.id=52727

If the windows update changed the usual needed files for networking/internet, then the ZA will not see
the changes and continue to use the previously known files and ignore the newer files. Even though the
file names and locations are still the same from before, now the file size and checksums no longer match.

To solve this, just reset the ZA database and the ZA will be "fresh" as when it was first installed:

# Boot your computer into the Safe Mode
# Navigate to the c:\windows\internet logs folder
# Delete the backup.rdb, iamdb.rdb, *.ldb and the tvDebug files in the folder
# Clean the Recycle Bin
# Reboot into the normal mode
# ZA will be just like new with no previous settings or data


Once this is finished, reboot back into the normal mode and in the new network found windows, set the
new network to Trusted.
Then do this to ensure the ZA is setup properly:

Make sure your DNS and DHCP server IP's are in your Firewall's Trusted zone. Finding DNS and DCHP servers, etc

1. Go to Run and type in command and hit 'ok', and in the command then type in ipconfig /all then press the enter key. In the returned data list will be a line DNS and DHCP Servers with the IP address
(s) listed out to the side. Make sure there is a space between the ipconfig and the /all, and the font is the same (no capitals).
2. In ZA on your machine on the Firewall, open the Zones tab, click Add and then select IP Address. Make sure the Zone is set to Trusted. Add the DNS IP(s) .
3. Click OK and Apply. Then do the same for the DHCP server.
4. The localhost (127.0.0.1) must be listed as Trusted.
5. The Generic Host Process (svchost.exe) as seen in the Zone Alarm's Program's list must have server
rights for the Trusted Zone.
Plus it must have both Trusted and Internet Access.

Oldsod.


MowGreen [MVP 2003-2008]
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*-343-* FDNY
Never Forgotten
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Relevant Pages

  • For those using Zome Alarm having problems since windows update
    ... If you use ZoneAlarm you will lose your Internet connection after installing the latest security updates from MS - KB951748 in particular. ... Make sure your DNS and DHCP server IP's are in your Firewall's Trusted zone. ...
    (uk.people.silversurfers)
  • Re: DNS Error--Anyone?
    ... The DNS 4004 error looks like the AD isn't fully up and running when it ... zones - your domain zone, two reverse lookup zones and another one. ... |> reinstall the servers and sought advice in the thread "Installing Active ... |> installed the second server, setup static IP address, joined the domain, ...
    (microsoft.public.win2000.active_directory)
  • Re: Update KB951748 causes no connect to internet, anyone have thi
    ... a major snafu from MS to not let firewall makers in on the plan. ... Make sure your DNS and DHCP server IP's are in your Firewall's Trusted zone. ...
    (microsoft.public.windowsxp.network_web)
  • Re: Setting up 2nd DNS Server
    ... I've got one domain with a DC with DNS installed and active. ... Its Active Directory Integrated Zone. ... above) the zone will replicate and installing DNS server USUALLY ... existing records on Integration.) ...
    (microsoft.public.windows.server.dns)
  • Re: What aging/scavenging do?
    ... What actually this aging ang scavenging setting in AD integrated DNS ... noticed that in the reverse lookup zone there are duplicate entries ... DHCP on DNS, ... DHCP COnsole, DHCP server properties, and on the Advanced tab of the DHCP Server ...
    (microsoft.public.windows.server.dns)
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