When you change it the WAN only, the ethernet port on the router will be WAN port, and you can only access internet or the interface page 192.168.0.254 by the wireless connection. the ethernet port...

If you unplug the third one from the socket, how about the speed? You can use the utility to reset the third adapter.

The ADSL is off?? If the internet works fine with another modem, i think this W8961ND may be dead if the ADSL light is always off. If it is on, you can try to login to http://192.168.1.1 and go to...

Do you have a compute and test the media share on the computer?

1 connect the computer to the one of the LAN ports (the yellow ports) of the WR743ND 2 open up the internet explorer. In the address bar, put in http://192.168.1.1 and the username and password are...

you can try to set up wds bridge to extend the wireless range: http://www.tp-link.com/en/article/?faqid=440