My internet was fine for a at least 3-4 hours but then suddenly it disconnect itself.. When I tried troubleshooting I get message that "Windows couldn't bind IP protocol stack".. This is the first time I get this problem, never had any problem like this before for months.. What should I do? Thanks in advance..

To assist you better I would like to ask you a question. a) Have you made any recent changes on your computer? Step 1: install the latest drivers for the network adaptor from the manufacturer’s website. If this doesn’t fix the issue, then go ahead with the step 2. Step 2: Also I would suggest you to reset the network adaptor settings. Then follow the steps below To reset the TCP/IP stack go to this article and either click on "Fix it for me" or follow the instructions to fix it yourself: http://support.microsoft.com/kb/299357 Disable the IP Helper service: 1. Hold the Windows key and type R, enter "services.msc" (without the quotes) and press Enter 2. Scroll down to the IP Helper service, right click on it and select Properties 3. In the dropdown box that says "Automatic" or "Manual", set it to Disabled and then click on "Apply" 4. Then click on "Stop" to stop the service from running in the current session 5. Click OK to exit the dialog Disable IPv6: Try uninstalling IPv6 on all interfaces, removing any IPv6 virtual adapters, and resetting the TCP/IP stack. To remove IPv6, go into the properties for each network adapter and either uncheck the box next to the protocol "Internet Protocol version 6 (TCP/IPv6), that will disable it, or select it and click uninstall, which will remove it off the computer. Then go into device manager and remove any 4to6 adapters, WUN miniport adapters, or tunnel adapters. NOTE: You should do this for each network connection. Disable the DHCP Broadcast Flag: Link: http://support.microsoft.com/default.aspx/kb/928233 Important: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: http://support.microsoft.com/kb/322756 (How to back up and restore the registry in Windows) Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers To resolve this issue, disable the DHCP BROADCAST flag in Windows Vista. To do this, follow these steps: 1. Click Start, type regedit in the Start Search box, and then click regedit in the Programs list. If you are prompted for an administrator password or for confirmation, type your password, or click Continue. 2. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID} 3. In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network. 4. On the Edit menu, point to New, and then click DWORD (32-bit) Value. 5. In the New Value #1 box, type DhcpConnEnableBcastFlagToggle, and then press ENTER. 6. Right-click DhcpConnEnableBcastFlagToggle, and then click Modify. 7. In the Value data box, type 1, and then click OK. 8. Close Registry Editor. By setting this registry key to 1, Windows Vista will first try to obtain an IP address by using the BROADCAST flag in DHCP Discover packets. If that fails, it will try to obtain an IP address without using the BROADCAST flag in DHCP Discover packets. I hope that this information helps. Please get back to us if you have any more questions about this issue.

You can also proceed by doing a system restore for your operating system. This arctile will show you how to proceed: http://www.brighthub.com/computing/windows-platform/articles/30783.aspx If you will do a system restore you should choose a restore point that dates more than the appearance of your problem. This should solve your problem. Best regards.

I tried using Windows XP on my PC and same problem still happened.. The different thing is that the error message that appeared, Windows suddenly said "Network cable is unplugged", even though the cable is still plugged.. but unlike in Windows 7, in XP the internet connection automatically connected again after that.. in Windows 7, the internet connection won't disconnect anymore before I restart the PC..

Have your performed what I mentioned?