My S3 will randomly and frequently disconnect from/reconnect to my router. This has been happening since the OS update back in late December of 2012. I've tried everything I can think of, I've posted on another forum, and nothing seems to be working. It is maddening. If I am browsing the net, I have to refresh roughly every 45 seconds because of the dissconnect/reconnect, and I get a "page can not be displayed" error. If I am using Facebook and this happens, I am constantly kicked out of whatever I was doing, and thrown to the top of the news feed.