For remote access, you need to use the WAN IP address to access the page which can be found on the Status->Device Info->WAN section

is there any other devices like computers, mobile devices working fine? if so, you'd better contact the TV support to check whether it needs any other settings

is the access point mode working in this way: http://www.tp-link.com/en/faq-417.html? for repeater mode, you may try the WDS, it is similar but may not compatible between different routers, my device...

What is the version? Different version has different light status. On some versions, the wireless light should be blinking. If you can see your TP-LINK_Extender wifi signal on your devices, then you...

Yes, the range extender will use a virtual MAC address, and when your devices connect to the extender, they will have virtual MAC address as well. On this case, you need to add the MAC address which...

Great!!