Patch Tuesday Update Breaks ZoneAlarm on Windows XP - Updated!
Posted 07/09/08 at 04:59:03 PM by Mark Edward Soper

ZoneAlarm+KB951748 = Broken Internet Access
From The Inquirer to DSLReports to our own readers, it seems like everyone's talking about the catastrophic combination of current ZoneAlarm products and Microsoft's KB951748 update for Windows XP from this month's Patch Tuesday. The update (MS08-037), ironically enough, is supposed to improve security for the DNS function of Windows. However, when you combine it with the ZoneAlarm firewall (ZoneAlarm Free, ZoneAlarm Pro, ZoneAlarm AntiVirus, ZoneAlarm Anti-Spyware, or ZoneAlarm Security Suite), you lose all most network/Internet functionality (update: you might be able to ping servers, but you cannot connect to websites).
Solutions Workarounds
In the meantime, what should you do? ZoneAlarm recommends one of the following three options:
- Adjust the Internet Zone security slider to Medium
- Uninstall KB951748
- Add your DNS servers to the Trusted Zone
For complete details, see the ZoneAlarm press release. No word yet about an updated version of the security patch from Redmond.
Now, Solutions from ZA (updated 10:25PM CDT July 9, 2008)
The ZoneAlarm press release now contains links to updated versions of ZoneAlarm products that will solve this problem. Thanks to reader Block_Dude for providing the heads-up, and to all commentors for your feedback and suggestions.
If you have friends or business associates with this problem, do them a favor and give them the word - after all, until they can solve the problem, they can't even find out why it happened!
Be sure to tell us if you've been affected, and if you have any other suggestions.
ZA
Submitted by Black Falcon on Thu, 07/10/2008 - 7:00pm
I just turned the firewall level down from high to medium and it let me back online.
Ah....
Submitted by Queenof1 on Thu, 07/10/2008 - 12:47pm
I knew it was ZA (after my daughter's Mac was able to get online) but I didn't know the update was the culprit. Interestingly, I still could not connect to the 'net in safe mode. I could only connect by shutting off ZA in normal mode. Meanwhile, at my job, we are getting high call volume because customers think it's us not software issue.
Security Update?
Submitted by Pinkyblister on Wed, 07/09/2008 - 6:43pm
I had the same problem-instant loss of internet connectivity. I used System Restore to quickly undo whatever was done and got back to where I was a day earlier. After an episode like this, I am glad not to have automatic updates turned on-who knows how many people wondered what happened to their internet connection???
Breaks Windows 2000 Also
Submitted by dpbaudra on Wed, 07/09/2008 - 6:22pm
Somebody forgot to mention this fix breaks Win2K as well. Setting the Internet Zone Security slider Medium revives Win2K.
Maybe Zone Alarm shares part of the blame?
Submitted by Keougmi on Wed, 07/09/2008 - 6:05pm
I'm no Microsoft fanboy, but maybe Zone Alarm may have caused part of the problem? ZA completely borked my AMD XP Windows install about a year ago when ZA pushed an update. ZA software goes so deep into the inner workings of windows at the system level, I couldn't even uninstall ZA adequately so it would save the Windows install. I spent about 20 hours rebuilding. (Now I have Acronis to prevent a similar debacle).
I found out on some forums that a small percentage of other Asus AMD 939 board owners had similar problems, and ZA acknowledged they had a problem after a few weeks of hearing from very pissed off people. Their suggested "fix" did nothing.
ZA never did come up with an adequate solution, so I stopped using their software. I don't trust their programming prowess anymore.
We've gotten a lot of
Submitted by willsmith on Wed, 07/09/2008 - 8:07pm
We've gotten a lot of complaints about ZoneAlarm 8 from readers. It seems to not behave well with quite a few other applications. We'll have to retest and reevaluate our recommendations of their products.
Thank God I was Folding
Submitted by nsvander on Wed, 07/09/2008 - 4:56pm
I was folding and waiting for the current work unit to finish before I installed all the fixes that microsoft notified me of. I think I will download the new version on ZA then install the patches and see what happens.
Killed my ZoneAlarm
Submitted by Homer2029 on Wed, 07/09/2008 - 4:38pm
Killed my ZoneAlarm also, switched to Sygate Personal Firewall and I like it quite a bit better than ZA, and I've been a ZA user for the last two years!
New version of ZA is out!
Submitted by Block_Dude on Wed, 07/09/2008 - 3:59pm
http://download.zonealarm.com/bin/free/1043_zl/zaSuiteSetup_70_483_000_en.exe
-I've tried it and it does in fact work correctly now.
hardy-har...
Submitted by interval_i on Wed, 07/09/2008 - 3:50pm
ha... ha... ha... i thought the update might be the culprit. having little patience, my partner and i uninstalled zonealarm and switched to comodo yesterday... ah, well. gave us a reason to watch the south park 'overlogging' episode again...
thanks
Submitted by guoruiwu1994 on Wed, 07/09/2008 - 3:27pm
thanks for helping me fix the internet on my pc!
Typical of Redmond programmers
Submitted by Zyryn on Wed, 07/09/2008 - 3:20pm
I spent a good half-day arguing with my ISP over this problem. It doesn't actually kill "all net functions," as I was able to ping my Gateway, DNS servers, and any other IP address out there. I knew it must have been an update problem because I was working fine this morning.....then came 4 security updates.....afterward, no internet. But I didn't know it was a ZoneAlarm problem until I fired up my laptop, which doesn't have ZoneAlarm on it......it worked just fine. Until there's a definite fix for this issue (which will never come from Redmond....we'll have to get it from Zone Labs), I've simply uninstalled ZoneAlarm and re-enabled the craptacular Windows Firewall.
I was lucky to catch the problem early...
Submitted by Block_Dude on Wed, 07/09/2008 - 3:08pm
In my ZA settings, I have everything logged and I also have it set to alert me everything odd it encounters by setting the "Alerts Events Shown" to high under Alerts and Logs. It might be annoying to some people, but I'd prefer to be bothered by every insignificant thing it encounters.
This is a pretty widespread problem, I wonder who is to blame...
This happened to me as well.
Submitted by MrAnonymous on Wed, 07/09/2008 - 2:43pm
This happened to me as well. I sat there rebooting, resetting, and unplugging everything. It never occurred to me it might be ZoneAlarm.
I was wondering which update
Submitted by shellpc on Wed, 07/09/2008 - 2:41pm
I was wondering which update I installed today borked my connection.
Do you ever get the feeling
Submitted by Pentium 0 on Wed, 07/09/2008 - 2:19pm
Do you ever get the feeling microsoft might be doing bad stuff to Xp on purpose...?
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