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Thread: Can't access internet when Internet Zone Security is set to High

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  1. #1
    catcherr Guest

    Default Can't access internet when Internet Zone Security is set to High

    Hello Up until recently, I did not have a problem accessing the internet when the Internet Zone Security within Zone Alarm Firewall is set to High. I changed ISP and from then I found I can only access the internet when I set it to Medium. When I change from Medium to High, I immediately see that internet is blocked (for example in an MP game, or files downloading), and when switching back to Medium, then the internet immediately returns and the MP game is responsive again. The things that changed are: I now use a dialer, also the cmmon32.exe is related and being used (I think its some service) I now use a modem, when before I had a router with modem built in (even though I only use one computer) I now use Cable and before I used ADSL, for internet access. The XP OS Firewall is off. I have the latest updates and latest version of ZA. ZA detects the IP range (IP/255.255.255.255) or (IP/255.255.255.0) for the Gigabit PCI adapter network card) It also automatically added Loopback filter 127.0.0.1 on intital ZA install. I now use the onboard ethernet port, might switch to the PCI one later, I doubt that is the reason. I assume I need to change some setting, and would appreciate the help. Thank you.

    Operating System:Windows XP Pro
    Software Version:8.0
    Product Name:ZoneAlarm Internet Security Suite

  2. #2
    Join Date
    Dec 2005
    Posts
    9,056

    Default Re: Can't access internet when Internet Zone Security is set to High


    <blockquote><hr>catcherr wrote:
    Hello Up until recently, I did not have a problem accessing the internet when the Internet Zone Security within Zone Alarm Firewall is set to High. I changed ISP and from then I found I can only access the internet when I set it to Medium. When I change from Medium to High, I immediately see that internet is blocked (for example in an MP game, or files downloading), and when switching back to Medium, then the internet immediately returns and the MP game is responsive again. The things that changed are: I now use a dialer, also the cmmon32.exe is related and being used (I think its some service) I now use a modem, when before I had a router with modem built in (even though I only use one computer) I now use Cable and before I used ADSL, for internet access. The XP OS Firewall is off. I have the latest updates and latest version of ZA. ZA detects the IP range (IP/255.255.255.255) or (IP/255.255.255.0) for the Gigabit PCI adapter network card) It also automatically added Loopback filter 127.0.0.1 on intital ZA install. I now use the onboard ethernet port, might switch to the PCI one later, I doubt that is the reason. I assume I need to change some setting, and would appreciate the help. Thank you.

    Operating System:
    Windows XP Pro
    Software Version:
    8.0
    Product Name:
    ZoneAlarm Internet Security Suite

    <hr></blockquote>


    Your ZA is improperly set the 255.255.255.255 is bascially a broadcast performed in attempts to connect before the actual dhcp/dns/internet connections are made posssible.

    Try this:

    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.

    Extra help is found at Guru Hoov site for the DNS/DHCP.

    Oldsod.
    Best regards.
    oldsod

  3. #3
    catcherr Guest

    Default Re: Can't access internet when Internet Zone Security is set to High

    127.0.0.1 is already there as Trusted. I now added the DNS servers that showed in command ipconfig/all as Trusted, the servers for the onboard ethernet port that I currently use. The DHCP server is not enabled, also info from command ipconfig/all. And I think DHCP is just for networks? I still do not have internet access when the Internet Security Zone is set to High. Should the Internet IP in ZA show as [IP/255.255.255.0] - the last octet as 0 instead of 255? In that case I can try to remove the Gigabit PCI adapter Hardware from the computer, will that help? Even though its now Disabled in Network Connections. Or I could just try to use the Gigabit PCI adapter which is now marked as [IP/255.255.255.0], both provide the same speed. Is that the reason, or something else?

  4. #4
    Join Date
    Dec 2005
    Posts
    9,056

    Default Re: Can't access internet when Internet Zone Security is set to High

    Add the dhcp servers as trusted in the zones of the firewall of the za.

    Oldsod.
    Best regards.
    oldsod

  5. #5
    catcherr Guest

    Default Re: Can't access internet when Internet Zone Security is set to High

    'Dhcp Enabled. . . . . . . . . . . : No' (There is no DHCP server ip)
    That's whats written for the adapter I use.
    For the other adapter it says enabled but I did not check its configuration yet, as I do not use it. I assume I could disable it there.
    But for the one I use, its disabled. I assume because there is no use for it, as its used for networks? I only have one computer.
    There is also a 'Default Gateway', should I add it too or not?

    I could try to do what I wrote in my previous reply (physically remove or use the other dedicated adapter)
    Also, what is the difference between Internet Zone Security of Medium and High?

  6. #6
    Join Date
    Dec 2005
    Posts
    9,056

    Default Re: Can't access internet when Internet Zone Security is set to High


    <blockquote><hr>catcherr wrote:
    'Dhcp Enabled. . . . . . . . . . . : No' (There is no DHCP server ip)
    That's whats written for the adapter I use.
    For the other adapter it says enabled but I did not check its configuration yet, as I do not use it. I assume I could disable it there.
    But for the one I use, its disabled. I assume because there is no use for it, as its used for networks? I only have one computer.
    There is also a 'Default Gateway', should I add it too or not?

    I could try to do what I wrote in my previous reply (physically remove or use the other dedicated adapter)
    Also, what is the difference between Internet Zone Security of Medium and High?
    <hr></blockquote>


    Who cares if your windows is not acting as a dhcp server, it is the gateway or router that is that computer's dhcp servers. Not your own windows operating system.

    http://kb.iu.edu/data/adov.html

    Oldsod.
    Best regards.
    oldsod

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