Nano Wireless N TL-WN725N Adapter Not working

PC First

Honorable
Dec 16, 2013
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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

 
Solution
Quite abnormal behavior for the device. It is most likely defective. Can you borrow another USB WiFi adapter, and give it a try to see if the problem persists?
Very strange yes, But it get even stranger. I then plugged in my usb keyboard and mouse into a usb hub and plugged the USB Adapter into the back of the PC and it works flawlessly. But If i put my USB keyboard and mouse into the back of the PC the USB adapter then goes back to being very slow again.