It could replace the certificates in EAP Controller, but not EAP itself. You could also send email to the TPLINK Support for help. http://ticket.tp-link.com/index.php?/Tickets/Submit

I have asked a same question before, but it can;t meet my demand. So i am also feel sorry about that.

You could set portal authentication then you could configure the redirect URL to a facebook page. But before you redirect to that page, you need to authenticate first.

You could refer to quick installtion guide: http://www.tp-link.com/res/down/doc/TL-WA901ND_V4_QIG.pdf For your situation, i think Universal Repeater is better when it relay your main wifi wirelessly...

AP don't support that.

I think you could refer the UG. http://www.tp-link.com/res/down/doc/TL-WA901ND(UN)_V4_UG.pdf http://www.tp-link.com/res/down/doc/TL-WA901ND_V3_UG.pdf