Some ZoneAlarm users were cut off from the internet after installing one of the security updates issued by Microsoft on Patch Tuesday, according to online message forums.
Early yesterday, ZoneAlarm told its users to uninstall the Microsoft patch - which fixed a widespread problem with the web's addressing system - or make more technical changes to their PCs in order to regain a connection. However, a fix is now available from ZoneAlarm's site.
"Microsoft Update KB951748 is known to cause loss of internet access for ZoneAlarm users on Windows XP/2000. Windows Vista users are not affected," says a note on the company’s site.
Shortly after Microsoft posted its monthly security updates on Tuesday, ZoneAlarm users running Windows XP started posting complaints about broken connections. "After installing the patches, [my son's] computer could not access the internet," said a user identified as 'RFSharpe' on a ZoneAlarm support forum. "I noticed that as soon as I disabled ZoneAlarm I was able to access the internet again."
Traffic on other message forums was also heavy; one thread on dsl.com detailing problems sported more than 120 messages and has been viewed more than 22,000 times.