1. Don't make unnecessary changes. This makes it much more difficult. In particular in Windows, settings something and then setting it back is often not without further consequences.
2. You have made so many changes on your computers which messed it up pretty well. For example, you can see a lot of isatap, 6to4 and other network adapters in ipconfig which are bogus remnants of your previous experiments. Thus, it's difficult to find out what exactly causes this problem.
3. I would suggest you remove your wireless network on the computer and then reconnect to see if it makes a difference.
4. If that doesn't help it may be necessary to reset the IP stack or clean up the garbage of all your previous experiments.
5. It could also help to remove the wireless adapter in the device manager, reboot and then let Windows rediscover the adapter. This should setup a new connection hopefully with clean settings.
6. If the ipconfig before is the one when you try to connect wireless to the router, it seems not to get an IP address via DHCP. Check the event manager for messages of the dhcp client service. This may tell what goes wrong.
