Ad-Hoc Wireless connection and FireWall Problems

Posted on 2009-12-18
Last Modified: 2013-11-16
I have successfully (well almost) set up a wireless connection between my iTouch and Laptop.

The laptop connects to the internet through a dongle.

I create an ad-hoc wireless connection on my PC (running Windows 7).

Now the issue starts with my Firewall.

The iTouch cannot access the internet, because my PC's firewall is blocking the connection.

In PC Tools Firewall, if I look at the History is displays that the rule 'All Other TCP and UDP Packets' has blocked the TCP type from the source 192.168.?.?.

So I go to Profiles, and in my Trusted IP List, I add the IP Address range to

But alas its still being blocked with the same rule as before.

I cannot seem to change the rule on the 'All Other TCP and UDP Packets' to specifically allow these IP address through.

The only way to do this is to turn off the All Other TCP and UDP Packets, but I thought that this would leave my PC open to all undesirable traffic.
Question by:deluk20
    LVL 12

    Accepted Solution

    Turn off your firewall temporarily and then see if your setup works without it turned on.  If it does, then the firewall configuration is, indeed, the problem.  If it doesn't, then it's not the firewall.

    Assuming it's the firewall, as you surmise, does the packet being blocked have the address of your iTouch or your Windows 7 system?  Is your Windows 7 system set up for Internet connection sharing?  How is your iTouch getting its IP?  

    Author Comment

    Hi Profgeek,

    When I have the firewall on my PC turned off, the itouch has full access to the net. When turned on ... Nothing!

    The PC's Wireless Adapter has been 'told' to use the IP address of and the Subnet mask (Picture 1).

    Reading the History of the Firewall program the IP address being block is exactly that of the ITouch (picture 2), even though I specified the entire IP range to be a 'Trusted IP' address to (Picture 3). Currently on the current connection the Itouch has the IP of


    Author Comment

    Slight change now.

    I noticed that the very first network picked up by PC Tools Firewall is one that it uses. In this case the one that connects to the internet

    So I deleted the network, connected to the ad-hoc network. This is now stored in the Network settings on PC Tools.

    I re-connect the internet connection and all is well.

    As I am unsure if PC tools is now covering my internet access, I have enable the Windows 7 firewall - well better than nothing..

    How can I check my firewall for the internet connection?
    LVL 67

    Assisted Solution

    Checking your firewall is easy. Go to e.g. ShieldsUp! (, might change), and do a "Common Port" scan (or type in any special port you would like to test).

    Author Comment

    Having contacted PC Tools, they advise to switch off the Packet Filtering - works but unsure how well

    Thank for your input guys

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