There seems to be a problem in Windows when you enable Internet Connection Sharing on a network adaptor and then remove the network adaptor that ICS was enabled on, then Windows will still send IPv6 router advertisments for the network adaptor that you removed. Whats more, disabling router advertisments doesn't work, Windows turns them back on automatically after boot. Even if you remove the network adaptor from device manager (by showing non present devices) this still doesn't fix things. The only ways to fix this is to either disable IPv6 completely, or enable ICS on another network adaptor and then disable it. This was a problem while setting up for a LAN party. Connectivity was being lost in the IPv6 network and it turned out that certain systems were advertising themselves as a route. After investigating, it turned out systems which had previously had ICS enabled but not being disabled prior to them being disconnected and then connected to the LAN. It is also pretty trivial to reproduce this. Enable ICS and then remove the adaptor, that is it. Since the fix is fairly trivial too (enable ICS and then disable it again on a network adaptor in the system) I am wondering about what is the best way to report this as a problem. It took a while to figure out what the problem was, and you can't expect just any end user to be able to figure out a problem like this. I am guessing Windows paid support would be the best place to take this, but I would rather not do that if there is another way.This is a signature Any samples given are not meant to have error checking or show best practices. They are meant to just illustrate a point. I may also give inefficient code or introduce some problems to discourage copy/paste coding. This is because the major point of my posts is to aid in the learning process. Do you want Visual Studio 11 Express to be freely installable on Windows 7 and able to write regular C++ applications? Please vote for this.

Hi Crescens2k, I would say that the support will be the best way to start the resolution process. Thanks, Girish ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Please remember to click "Vote As Helpful" on the post if the information is useful to you ! Please remember to click Mark as Answer on the post that helps you to fix the issues, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

I thought so, but it doesn't hurt to ask.This is a signature Any samples given are not meant to have error checking or show best practices. They are meant to just illustrate a point. I may also give inefficient code or introduce some problems to discourage copy/paste coding. This is because the major point of my posts is to aid in the learning process. Do you want Visual Studio 11 Express to be freely installable on Windows 7 and able to write regular C++ applications? Please vote for this.