Have you set the RSSI function before, refer the UG http://www.tp-link.com/res/down/doc/EAP_Controller_Software_V2_UG.PDF page58 to have a check. And i doubt that when you use the same SSID for two...

could refer this faq: http://www.tp-link.com/en/faq-928.html (for external portal server). the eap device [COLOR=#333333]intercept client’s HTTP request and then redirect it to the EAP Controller. so...

You can use "Bridge with AP" mode which can change broadcasting SSID name of AP. Then you could connect the SSID of AP. What's more, if you don't want to change mode, you could also can do mac filter...

500 entries for each SSID. I got this answer before.

Refer FAQ http://www.tplink.com/en/faq-492.html to check whether you have configured right. If all is right, maybe it is you router don't support four-address when 901ND only support four-address in...

I think it want to let customer get into GUI more convenient with two kind of methods rather that wired connected. I would advice that you could change the username and password in "System...