Internet connection freezing problem

Hi MuratOgut,

There is a possibility that the security software installed on the computer is causing the internet connection to freeze.

Method 1

Disable security software on the computer and check if it works.

Important: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you are connected to the Internet or a network during the time your antivirus software is disabled, your computer is vulnerable to attacks.

Method 2

Visit the network adapter manufacturer website download and install the latest driver update for the device and check.
Update a driver for hardware that isn't working properly
http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly

Method 3

Check if issue persists in the safe mode with networking.

Steps to boot to Safe mode with networking
1.     Restart your computer if it is powered on.
2.     Tap the F8 key after your computer initially powers on.
3.     Once you see the Advanced Boot Options menu you can stop tapping.
4.     Use the up/down arrow keys to highlight your selection.
5.     Select Safe Mode with Networking and press Enter.
6.     You should see drivers loading, and then Please wait.
7.     You should then be at the Welcome Screen.
8.     Logon to your computer using an account with Administrator privileges.

Start your computer in safe mode
http://windows.microsoft.com/en-US/windows-vista/Start-your-computer-in-safe-mode
Restart the computer to get back to the normal mode

Hope this helps!

Halima S    - Microsoft Support.
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