I've bought a TL-WN823N wifi dongle from Amazon(http://www.amazon.in/TP-Link-TL-WN823N- ... 01b767e672) . It's a 300 MBPS dongle and is working on rtl8192cu driver. The major problem i am facing with this dongle is when i turn off my WiFi router from which my pi was connected then status of wpa_supplicant goes down and it doesn't start again until i restart the networking by "sudo service networking restart". In this case i won't be able to make my pi as Headless. After searching, i found a lot of people are saying that this is a buggy driver and i have also tried after building this driver but no success. So i want a suggestion from RPi folks which is the best 300mbps dongle which works with raspberry pi flawlessly. P.S. I need only 300 Mbps.
Some are suggesting that dongle having Ralink RA5370 chipset is better to use.