Hello, I have been having some trouble with my TP-Link 150mbps Wireless N Nano USB Adapter, Model TL-WN725N. For some reason every time I try connecting to the router witlessly it seems to connect but with a yellow ! on it and then a red X pops up which means no connection I have the right device driver for it and I entered the security code correctly into it when it asked, I am using a Netcomm Wireless router too. I even changed my OS Win 7 x86_32bit and did nothing to help it just does the same thing ( I needed a new OS anyway XD). So if anyone could help me, please do!! thanks