Are you trying to clone your root router's SSID and security settings? Actually, there is another methord to change them manually on web page of WPA4220. http://www.tp-link.com/en/article/?faqid=398

Did you ever update a third party firmware? Did you try to restart or reset it to facotry defaults? If the same, your device is faulty then... Try to get it replaced under warranty.

coldbreeze16 wrote Hey it worked! Changing the port to 8080 just worked magically. Thanks man! Sorry for replying so late. Goooooooood~

If your TV has embeded driver of WN821N, it should work. What's the hardware version of your adapter?

MAS, that's right. WA901ND has no such a feature.

I am wondering why you upgrade the firmware. Any issues related to the previous firmware?