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Thread: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

  1. #1
    pathos Guest

    Default TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hello.
    I originally posted this in "off topic" because I was not sure if this was a ZAPRO issue or not, but not I am certain that it is.
    After I uninstalled ZAPRO, the issue went away.
    Basically the network stack is littered with connections which are never closed.
    This is a serious, serious problem, as my system became a dog after 1 day of usage.
    I've duplicated my previous posting from the off-topic forum
    below:
    "Hi. I have a new Inspiron 1545 laptop (will replace my desktop soon!), with Vista x64 SP2, 4 GB RAM, and a marvel 88e8040 fast PCIe NIC. I also have ZAPRO 8.0.298.000. For antivirus I use ESET NOD32 (x64 version). Now I have noticed a weird slowdown problem, especially after I've used networking for some time (1 day+). I've noticed that TCP-Z (TCP-Z, Best TCP/IP Patch: TCP-Z Center) shows me that my established TCP connections keep on increasing and almost never seem to go down as time go by and I keep on accessing the Internet. Now I currently have only 1 IE instance running, and I currently have 303 established connections shown in TCP-Z! Also, I used "netstat -ab" to look at my connections, and I see in the system process a WHOLE SLEW of connections to sites which I had previously browsed but since closed. Moreover, "netstat -ab" confirms that I have a great deal of connections open. I checked with task manager just to make sure there were no runway IE/Firefox processes, and there were none.

    It looks like there is a connection leak on my system! Can anyone confirm this with Vista x64 SP2, and ZAPRO running? I don't know where the problem is, but it is a clearly a low level issue of some kind, unless this is normal behaviour on Vista SP2. AFAIK, when a process terminates, its connections terminate with it. On Monday I'll check on XP SP3 just to compare statistics. If anyone has any ideas, please by all means post a reply."
    As I previously mentioned, this issue went away right after I uninstalled ZAPRO.

    Can anyone else with ZAPRO, Vista x64, and SP2 confirm this issue?

    Operating System:Windows Vista 64 bit
    Software Version:8.0
    Product Name:ZoneAlarm Pro

  2. #2
    Join Date
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    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hi!please update your ZAPRO to the latest version (8.0.400.020).For troubleshooting purposes when asked choose CLEAN install and NOT Upgrade. This willclean your ZAPRO of any corrupted or wrong setting.Than do not alter any settings keep the default ones.Where to download latest version of ZoneAlarm Cheers,Fax

    Click here for ZA Support
    Monday-Saturday 6am to 10pm Central time
    Closed Sundays and Holidays

  3. #3
    pathos Guest

    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Thanks for your reply.
    I will try the update, but it's strange that ZA did not ask me to upgrade.
    Also when I selected the search for update option, ZA told me I was up to date.
    Am I doing something wrong?
    In any case, I will try the upgrade, and post the results.

  4. #4
    pathos Guest

    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hello, I have just applied the
    new version of ZA
    as a clean installation, but the problem it seems still remains.
    It's strange, though, because in the prior version the problem was manifested with both IE and Firefox, but now only with Firefox.
    I did not try other programs, but it seems that while the problem is partially addressed, it does remain.
    I wonder if anyone else could confirm the issue.
    In order to easily view outstanding connections, one could use tcpview:http://technet.microsoft.com/en-us/s.../bb897437.aspx
    So- all I do is open and close firefox repeatedley, and I see the connections being leaked in tcpview.
    Can anyone else confirm this issue?
    Again, I'm in Vista x64 SP2, using ZA Pro 8.0.400.020

  5. #5
    pathos Guest

    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    In my last post I had stated that this issue had disappeared on IE using a later version of ZA Pro.
    However, I was mistaken, it just takes longer to manifest itself, while with Firefox it's much easier to reproduce.
    I hope others here can reproduce the issue as well.

  6. #6
    Join Date
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    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hi!sorry does not happen here, try to boot your system only with ZA and standard OS servcies to exclude third party software conflicts...1.) Click Start -> 2.) Type MSConfig in the VISTA search box and click OK
    3.) Once in MSConfig, click the Startup Tab
    4.) Remove the checks from everything except ZLClient
    5.) Click the Services Tab
    6.) Place a check in "Hide All Microsoft Services"
    7.) Now remove checks from everything other than TrueVector Internet
    Monitor, and click OK.
    8.) Restart your computerHow does it work?
    NOTE: You can place your computer back into a normal startup process by
    going back into msconfig and choosing the Normal Startup option on the
    General tab.
    Cheers,Fax

    Message Edited by fax on 07-05-2009 07:03 PM

    Click here for ZA Support
    Monday-Saturday 6am to 10pm Central time
    Closed Sundays and Holidays

  7. #7
    pathos Guest

    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hi again, when you say that you cannot reproduce the issue, can you confirm your OS, service pack, arch (x86, x64), and just how you tried to reproduce it?
    For my part when I get home later tonight I will try what you suggest and see if that makes a difference.
    Of course, our NICs are probably different also.

  8. #8
    Join Date
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    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hi!here is VISTA 32bit SP2, different than yours.... Fax

    Click here for ZA Support
    Monday-Saturday 6am to 10pm Central time
    Closed Sundays and Holidays

  9. #9
    pathos Guest

    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Also one more question, when you tried to reproduce it, how did you monitor TCP connections?
    Tcpview?

  10. #10
    Join Date
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    Default Re: TCP Connection Leak from ZAPRO 8 (Vista x64 SP2)

    Hi!Yes, tcpview easy and solid.May be its a 64bit issue.Cheers,Fax

    Message Edited by fax on 07-05-2009 07:27 PM

    Click here for ZA Support
    Monday-Saturday 6am to 10pm Central time
    Closed Sundays and Holidays

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