I have a BT Router which broadcasts wifi. I also have a TP-Link Powerline adaptor to extend my wifi range. The problem is with the Powerline adaptor. It broadcasts a perfectly good wifi signal which is detected by wifi analyzer software. It uses 802.11n on 2.4Ghz band. However my laptop...

I have TP-Link Wifi Adapter (Model: TP-WN821N). Since I do not have a CD ROM in my PC, I went to download the driver from TP-Link site. It was asking me for the version of the adapter (which i am not sure where to find). Hence I downloaded the latest version (V6). I clicked on the setup file...