I hate to bump a Six(6) month old topic but I'm having this same problem. My internet runs fine and I'm able to browse the web, play online games, etc. But there's a little Red X on the Internet connection icon in the Lower Right corner. It was never like that before until a few weeks ago maybe like a month and a half. I originally ignored it since my internet was working and everything so I figured it was nothing. Then I started to think maybe it'll lead to bigger problems. It said something about DNS when I clicked on the icon and I contacted my internet provide and he gave me instructions on how to possibly fix it but my Network and Sharing center doesn't respond as previously stated by others. What was the outcome ? Did anyone figure out how to fix it ??